The companies are working together to create _________ they hope will be the best means of transport in the 21st century.

A. which B. that

C. what   D. who

He began to take political science __________ only when he left school.

A. strictly       B. truly

C. carefully    D. seriously

Polar bears live mostly on __________ sea ice, which they use as __________ platform for hunting seals.

A. a; a     B. a; the

C. 不填; a      D. the; 不填

I can ______ some noise while I’m studying, but I can’t stand very loud noise.

A. put up with       B. get rid of

C. have effect on    D. keep away from

——Does your father plan to attend the conference?

——Yes, he intends______.

A. so     B. to do it     C to do     D. to

The old man spoke to the girl again, raising his voice a bit, but still ＿＿no answer.

A. received          B. receiving       C. had received     D. to receive

In Switzerland, six miles west of Geneva,___________ a collection of laboratory buildings.

A. lie       B. are lying       C. lies    D. lays

--Do you like the material?

--Yes, it ___________ very soft.

A. is feeling       B. felt         C. feels         D. is felt

At the beginning of class, the noise of desks __________ could be heard outside the classroom.

A. opened and closed     B. to be opened and closed

C. being opened and closed   D. to open and close

Mary, __________ here — everybody else, stay where you are.

A. come  B. comes

C. to come      D. coming