Leave him alone.He is ________ himself to the preparations for the coming exam.

A．adjusting  B．applying

C．losing  D．engaging

—Don't you know your computer has been infected with viruses?

—Really? No wonder it hasn't ________as well as before.

A．appeared  B．operated

C．managed  D．controlled

You can't see well through a telescope unless it is________correctly to your sight.

A. accustomed  B. adjusted

C. admitted  D. adopted

The news gave us a false sense of ________ so that we failed to see the danger was coming.

A．security  B．authority

C．responsibility  D．variety

Ronny's steps________，and there was a moment of absolute silence.

A．died down  B．died away

C．died off  D．died out

If you________a mistake in reviewing the report，please bring it to my attention.

A．come along  B．come across

C．come around  D．come about

—I don't really like James.Why did you invite him?

—Don't worry.He ________come.He said he wasn't certain what his plans were.

A．must not  B．need not

C．would not  D．might not

With China ________ in the world trade more frequently，the world economy is developing more rapidly and steadily.

A．participating  B．to participate

C．participated  D．being participated

TV­turn­off week，________millions of people around the world participate every year，tries to encourage people to turn on life.

A．in which  B．on which

C．which  D．when

The hospital ________ well, where many wounded ________ every day.

A．is operated; operation

B．operates; are operated on

C．operates; are operated

D．operates; operates on