Only after class_____to raise the question.A.did he allowedB.was he allowedC.he was allo

She hasn‘t decided with ______ she should first make contact.

A. who

B. whom

C. how

D. which

Too many people are indifferent _______ others‘ troubles.

A. with

B. to

C. of

D. about

Another worry is that telecommunication systems may isolate people ______ each other.

A. from

B. for

C. with

D. to

Because of his degree， he refused to do ______ he thought “low” work.

A. that

B. what

C. which

D. who

How can you keep the machine ______ when you‘re away?

A. run

B. to run

C. running

D. being run

______ is accepted as true is relatively， and not absolutely， true.

A. It

B. That

C. What

D. That it

I do not wish to ______ your sincerity.

A. reflect

B. reflect on

C. reflect in

D. reflect about

These hamburgers ______ nice， so they have all ______ out.

A. taste， sell

B. are tasted， sell

C. taste， been sold

D. are tasted， been sold

When I was young， my grandmother told me that the earth ______ round.

A. is

B. was

C. has been

D. had been

The computer of this kind can work ______ than the one of that kind.

A. hundred of times faster

B. a hundred time faster

C. hundred times faster

D. hundreds of times faster