2020年军队职称英语-综合类B级词汇指导重难点词组(30)

He is so determined!He ________ on the problem for two hours, and he will go on with it until he works it out．
A.works
B.worked
C.is working
D.has been working

 

The moment Jenny got home, she noticed a woman waiting for her．She ________ her before．
A.never saw
B.had never seen
C.never sees
D.has never seen

 

He is so determined!He ________ on the problem for two hours, and he will go on with it until he works it out．
A.works
B.worked
C.is working
D.has been working

 

By the time we get to their house, they ________ supper．
A.would finish
B.have finished
C.will have finished
D.are having
 

The mayor of Beijing says that all construction work for the Beijing Olympics ________ by the end of this month．
A.has been completed
B.has completed
C.will have completed
D.will have been completed．

 

I suddenly ________ with him last October and we ________ ever since．
A.got in touch; have got in touch
B.got in touch; have stayed in touch
C.kept in touch; have kept in touch
D.stayed in touch; have got in touch

 

After Smith ________ for half an hour, he came to the conclusion that Helen was not coming．
A.has been waiting
B.waited
C.has waited
D.had been waiting

 

The mayor of Beijing says that all construction work for the Beijing Olympics ________ by the end of this month．
A.has been completed
B.has completed
C.will have completed
D.will have been completed．
 

The moment Jenny got home, she noticed a woman waiting for her．She ________ her before．
A.never saw
B.had never seen
C.never sees
D.has never seen
 

Peter wishes now that he ________ English instead of Russian when he was in high school．
A.had studied
B.studied
C.study
D.has studied