This sign warns the people who study in the library __________.

A. don’t speak loudly B. not speak loudly

C. to not speak loudly D. not to speak loudly

Doctor Ray, as well as other scientists __________ trees for nearly 15 years, but they know only a little about them.

A. study B. studies C. has studied D. have studied

The TV is on, please don’t forget __________ when you leave.

A. to turn off it B. to turn it off

C. turning off it D. turning it off

Benny likes playing tricks ___________ others.

A. on      B. at C. for D. to

The film __________ for 5 minutes, we missed the beginning unluckily.

A. is on B. has been on C. begins D. has begun

What do you mean __________your right hand immediately after heard the news?

A. with rising B. with raising

C. by raising D. by rising

There are not many air conditioned buses in the company. The unlined phrase has similar meaning with _________.

A. a few B. few C. a little D. not enough

Every Sunday morning I need an hour to enjoy my pleasant breakfast with ________ newspaper.

A. a B. a piece of C. the         D. /

Could Daisy solve that difficult physics problem by _________?

A. she                B. her               C. hers             D. herself

Which of the following underlined part is different from others?

A. breathe            B. breath            C. leader            D. release