单选题The schoolmaster rang up ______.A. the police C. the Air ForceB. the rescue party D. the doctor

单选题John may phone tonight. I don't want to go out ______ he calls. A.as long as B.in order that C.in case D.so that

单选题The temperature of the Sun is over 5,000 degrees Fahrenheit at the surface, but it rises to perhaps more than 16 million degrees at the center. The Sun is so much hotter than the Earth that matter can exist only as a gas, except at the core. In the core of the Sun, the pressures are so great against the gases that, despite the high temperature, there may be a small solid core. However, no one really knows, since the center of the Sun can never be directly observed. Solar astronomers do know that the Sun is divided into five layers or zones. Starting at the outside and going down into the Sun, the zones are the corona, chromosphere, photosphere, convection zone, and finally the core. The first three zones are regarded as the Sun's atmosphere. But since the Sun has no solid surface, it is hard to tell where the atmosphere ends and the main body of the Sun begins. The corona is a brilliant, pearly white, firmly light, about as bright as the full Moon. Its beautiful rays are a sensational sight during an eclipse. The corona's rays flash out in a brilliant fan that has weak spikelike rays near the Sun's north and south poles. The corona is thickest at the Sun's equator. The corona rays are made up of gases streaming outward at tremendous speed and reaching a temperature of more than 2 million degrees Fahrenheit. The rays of gas thin out as they reach the space around the planets. By the time the Sun's corona rays reach the Earth, they are weak and invisible.

单选题Whatwillthemandointheevening?

单选题Why were there so many people waiting outside the Scala Theatre? Because ______.

单选题______, so they became good friends.

单选题

单选题Whatdoesthewomanmean?

单选题I didn't help him. I would have ______ I didn't have the money.

单选题--Why did you buy the car earlier? --I ______ Tom in Boston by car next month, but I"ve changed my mind.

单选题Neither Sunny nor her parents ______ at home. They have gone abroad.A. isB. areC. wasD. has been

单选题____ going to French evening classes twice a week, Ann does T’ ai Chi on Wednesdays.

单选题--How many students are there in the reading room?--______.

单选题Would you like a cup of coffee first, ______ shall we get down to business right now?[A] then[B] when[C] or[D] otherwise

单选题WhatdidNicholasdoateighteenmonths?

单选题—I stayed at a hotel while in New York. —Oh, did you? You ______with Barbara.