我们应该想办法防止有害气体的蔓延。(prevent… from)

The plane went off its_________ to keep away from the sudden storm.
A. road                                     B. course?
C. fly                                      D. direction

While building a tunnel through the mountains, _____________.

A．an underground lake was discovered

B．there was an underground lake discovered

C．a lake was discovered underground

D．the workers discovered an underground lake.

As a result of the serious flood，two-thirds of the buildings in the area　　　 .?

A.need repairing　　　　 B.needs to repair?　　

C.needs repairing 　　　 D.need to repair

I______ ______ ______ （失去联系）my Taiwan friends when I moved to America.

On April 6, 1896, ________ crowd of 60,000 people watched the King of Greece open ________ first modern Olympic Games．

A．a; a 　 　　　　　 B．the ; a　　 　 　 C．a ; the 　 　　　 D．the ; the

Jack didn’t give any e____________ for his impoliteness to his roommate.

If you fight ________ a better future，first of all，you should fight ________ the difficulties.

A．/; for　 　　　　　 B．against; with

C．for; with　 　　　　 D．with; /

回来时，他很惊讶地发现房间被彻底的打扫了，一切都布置得井井有条。

On his return,he was very ________to find his room thoroughly __________and everything ___________in good order.