He had been so absorbed____ watching the car passing by that he didn't notice his friends ____.

A. to; coming       B. in; to come      C. on; coming       D. in; coming

It's_____ that we should have to queue, when we have already got our tickets.

A. accessible        B. voluntary       C. appropriate       D. ridiculous

I shall never forget those years ____ I studied in the school with my classmates and teachers，__________ has a great effect on my life．

A. that; which       B. when; which      C. which; that    D. when; who

The children were not ___ for the accident. After all, they were still so young.

A. to blame         B. to be blamed        C. blaming        D. blame

Soon they ____________ the water which ____________ the pipe.

A. ran out; ran out of              B. ran out of; ran out of    

C. ran out; ran out                D. ran out of; ran out

I met one of my students the other day. After several years, she changed a lot and looked different from ____ she used to be. 

A. that                 B. whom               C. what          D. who

She hesitated at the gate of the canteen, _________ whether to enter or not.

A. to wonder           B. wondered         C. wondering          D. wonder

_________ the final exams, I would have gone to the concert yesterday.

A. In spite of           B. But for         C. Because of          D. As for

The man is teaching in our school, but，believe it or not，he __ as a business man for 8 years.

A. worked          B. was working        C. had worked        D. has been working

With many major economic problems________ to be solved, there is no point predicting the growth rate of this year now.

A. remaining                     B. remained    

C. have remained                D. having remained