In the open boat, the four men, ________ was a doctor, met with a storm at sea．

A．one of which

B．one of whom

C．one of them

D．one of who

－Have you handed in your school-work yet?

－Yes, I have．I guess it ________ now．

A．has graded

B．is graded

C．is being graded

D．is grading

－Do you know about the accident which happened in the center of the city?

－Yes．But it was some time ________ we realized the truth．

A．before

B．when

C．since

D．until

________ was most important to her, she told me, was her family．

A．It

B．This

C．What

D．As

I was about to give up when I ________ a good idea．

A．came about

B．came out

C．put up with

D．came up with

My boss hates interruptions, ________ when he is trying to work．

A．occasionally

B．generally

C．specially

D．especially

Can you imagine that the president of a large firm doesn’t ________ his dress?

A．apply for

B．call for

C．take care

D．care about

Did it ________ to you that you should phone the police?

A．happen

B．strike

C．occur

D．take place

By the time he finishes the part-time job, he ________ much work experience．

A．will gain

B．will have gained

C．has gained

D．had gained

It’s a waste of time ________ him．He is no longer in charge now．

A．asking

B．to ask

C．asked

D．asks