成人英语三级

26. Walking along the river, he heard someone _____ for help.

A. shouting                        

B. shout

C. shouted                         

D. having shouted

27. My vacation begins next Tuesday, _____ I will leave for Flofida.

A. which                             

B. that

C. while                             

D. when

28. He has made another wonderful discovery, _____ of great importance to science.

A. which I think it is               

B. of which I think is

C. I think which is                  

D. which I think is

29. I decided to buy a car because we had sold _____ we had in England before leaving.

A. that                              

B. the other

C.which                              

D. the one

30. The investigation, _____ will soon be published, was made by John.

A. at which the results              

B. the results on which

C. whose results                     

D. at whose results

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