Experiment of this kind _____ in both the U.S. and Europe well before the Second
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| Experiment of this kind _____ in both the U.S. and Europe well before the Second World War. |
A. have conducted
B. have been conducted
C. had conducted
D. had been conducted |
答案
举一反三
| It was reported that an agreement ____ between the two companies and that they would carry out a project together. |
A. reached
B. had been reached
C. was reached
D. had reached |
| ______ many times, but he still couldn"t understand it. |
A. Though he had been told
B. Having been told
C. Having told
D. He had been told |
| At the end of the meeting, it was announced that an agreement ______. |
A. has been reached
B. had been reached
C. has reached
D. had reached |
— George and Lucy got married last week. Did you go to their wedding?
— No, I _____. Did they have a big wedding? |
A. was not invited
B. have not been invited
C. hadn"t been invited
D. didn"t invite |
| They would tell how the slaves _____ on a ship to an American port on a rainy day. |
A. being brought
B. could have brought
C. had been brought
D. was to be brought |
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