——You didn’t wait for Mr. Black last night, did you?
——No, but we ____. He didn’t return home at all.
| A.couldn’t have | B.needn’t have | C.didn’t need to | D.should wait have |
How can you know whether you will succeed ______ you never try?
| A.in case | B.when | C.unless | D.even if |
It was the fifth time that he ______ to such a meeting.
| A.have been invited | B.was invited | C.had invited | D.had been invited |
The villagers, ______ damaged by the flood, were given help by the International Red Cross.
| A.all whose houses | B.all their houses | C.all of whose houses | D.their all houses |
. It is necessary that whoever ______ recently visited the country ______ this kind of test.
A.h as; pass |
B.has; passed | C.have; pass | D.has; passes |
His composition won first prize, ______ made him too happy to sleep for nights.
| A.what | B.that | C.which | D.where |