—There were a dozen pens in this house, but I can hardly find one now. — ______. One is sure to turn up.

—What are you going to do this weekend? — ______. If time permits, I may go to Shanghai with my friends.

Try to ______ your parents who were honest hardworking people.

They have ______ the dance many times for the better effect before they performed in the theater.

I'm not sure whether I can gain any profit from the investment, so I can't make a(n)______ promise to help you.

Earthquakes may rightly be ranked as one of the most destructive forces known to man: since records began to be written down, it has been estimated that earthquake-related fatalities have numbered in the millions, and that earthquake-related destruction has been beyond calculation. The greater part of such damage and loss of life has been due to collapse of buildings and the effects of rockslides, floods, fire, disease, tsunamis(gigantic sea waves), and other observable events resulting from earthquakes, rather than from the quakes themselves. The great majority of all earthquakes occur in two specific geographic areas. One such area covers the Pacific Ocean and its bordering landmasses. The other extends from the East Indies to the Atlas Mountains, including the Himalayas, Iran, Turkey, and the Alpine regions. It is in these two great belts or zones that ninety percent of all earthquakes take place; they may, however, happen anywhere at any time. This element of the unknown has for centuries added greatly to the dread and horror surrounding earthquakes, but in recent times there have been indications that earthquake forecast may be possible. By analyzing changes in animal behavior, patterns of movements in the earth's shell, variations in the earth's force of attraction, and the frequency with which minor earth shakes are observed, scientists have shown increasing success in expecting when and where earthquakes will strike. As a result, a worldwide earthquake warning network is already in operation and has helped to prepare for(and thus lessen)the vast destruction that might otherwise have been totally unexpected. It is doubtful that man will ever be able to control earthquakes and get rid of their destructiveness altogether, but as how and why earthquakes happen become better understood, man will become more and more able to deal with their possible damage before they occur.

Only when he started to explain ______ the reason for this.

—Sorry, I'm late. I got stuck in traffic. — ______. You're here now. Come in and sit down.

People who can't ______ between colors are said to be color-blind.

When he was in high school, hardly anyone did scientific experiments, much less accepted training ______ this respect.

You and I could hardly understand each other, ______?

If you suspect that the illness might be serious, you should not ______ going to the doctor.

Directions: For this part, you are allowed 30 minutes to write a composition on the topic: Development and Happiness. You should write no less than 120 words and you should base your composition on the outline below: 1．Development has brought about material prosperity for human beings. 2．Human beings do not seem to be happier because of this. 3．How can human beings achieve real happiness?

In many cultures people who were thought to have the ability to ______ dreams were likely to be highly respected.

The Union opposed the ______ of the technology because of the loss of jobs it would cause.

—We've only got this small bookcase. Will that do? —No, ______ I am looking for is something much bigger and stronger.

The police suggested that the motive for the crime ______ jealousy.

Your presence was a ______ to me at such a sad time.

Polyester is now being used for bottles. ICI, the chemicals and plastics company believes that it is now beginning to break the grip of glass on the bottle business and thus take advantage of this huge market. All the plastics manufacturers have been experiencing hard times as their traditional products have been doing badly world-wide for the last few years. Between 1982 and 1984 the Plastics Division of ICI had lost a hundred and twenty million dollars, and they felt that the most hopeful new market was in packaging, bottles and cans. Since 1982 it has opened three new factories producing ‘Melinar', the raw material from which high quality polyester bottles are made. The polyester bottle was born in the 1970s, when soft drinks companies like Coca Cola started selling their drinks in giant two-litre containers. Because of the build-up of the pressure of gas in these large containers, glass was unsuitable. Nor was PVC, the plastic which had been used for bottles since the 1960s, suitable for drinks with gas in them. A new plastic had to be made. Glass is still cheaper for the smaller bottles, and will continue to be so unless oil and plastic become much cheaper, but plastic does well for the larger sizes. Polyester bottles are virtually unbreakable. The manufacturers claim they are also lighter, less noisy when being handled, and can be re-used. Shopkeepers and other business people are unlikely to object to a change from glass to polyester, since these bottles mean few breakages, which are costly and time-consuming. The public, though, have been more difficult to persuade. ICI's commercial department is developing different bottles with interesting shapes, to try and make them visually more attractive to the public. The next step could be to develop a plastic which could replace tins for food. The problem here is the high temperatures necessary for cooking the food in the container.

We all knew from the very ______ that the plan would fail. Now you see it has become true.