单选题There was a bird ______ in the sky.

单选题WhatwereJackandIdoingwhenwesawthecat?

单选题Tom suggested that we ______ such a meeting, but Jenny insisted that it ______ of great importance.A. not hold; should beB. didn't hold; beC. hold; wasD. not hold; was

单选题--Can you speak Russian?--I can speak a little, ______ I can't understand much.

单选题I could hardly ______ him now. He has changed a lot. A. remember B. recognize C. remind D. realize

单选题{{B}}B{{/B}} One night in February 1962, John H. Glenn, Jr. , flew over Australia. The man in the Mercury (水星号) capsule (太空舱) was alone, but friendly voices reached him by radio. On the dark land 100 miles below, he saw a sprinkling (零星) of lights. They marked the city of Perth, where people had turned on their lights as a greeting to him. In Friendship 7, Glenn radioed, "Tile lights show up very well. Thank everybody for turning them on." His capsule raced on to the east. During his three orbits of the earth, Glenn could always reach one of eighteen tracking stations. Some of them were on ships at sea. Others were in the United States. Many of the stations had been built with the help of the other countries. These countries allowed Americans to bring in radio equipment and set it up. Without the help of such lands as Nigeria, Zanzibar, and Mexico, there would have been breaks in the worldwide radio network. John Glenn, Jr. , was the first American to orbit the earth. Pot his flight, the tracking network covered 60,000 route miles. Five hundred people worked in the stations along the route. Since his flight, the network has grown. Today, it covers more thanlO0,000 route mi- les and has about one hundred stations. One-third of these stations arc outside the United States.

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单选题I walked slowly to the teacher"s office wondering ______ she decided to talk with me.

单选题The nursing staff ______.

单选题--Have you got any idea for the summer vacation?-- I don't mind where we go ________ there's sun, sea and beach.

单选题Be aware ______ those who use the truth to deceive, and make a lie of what is true.

单选题______ the determined captain, all the passengers on board wouldn't have been saved. A．It had not been for B．Had it not been for C．If it had not for D．Not had been for

单选题RolfBlum, a Wuppertal fireman, knows that life and death are just seconds apart. When fire can kill within a few breaths, anything which gives him a little extra time is vital. Du Pont has spent years working with fire authorities to help give them those extra seconds. The result is a lightweight, fire resistant fibre: NOMEX Ⅲ. A suit of NOMEX III allows firemen to work closer to a fire, and enabled Roll Blum and his colleagues to rescue a little girl. Without it, he wouldn't have been able to reach her. NOMEX III is now standard wear for the fire brigades of many cities including Frankfurt, London and Milan, providing those vital extra seconds which could last a lifetime. Safety is just one area in which Du Pont is making important breakthroughs. Through Research & Development investment in excess of $1.3 billion each year and close cooperation with specialists in areas such as industry, agriculture and medicine, Du Pont is bringing technology to life.

单选题Whatisthewomangoingtobuy?