There was an oil painting _______ in the corner. It _______ there for several days.
| A．laying; had laid | B．lain; had laid | C．lying; had lain | D．laid; had been lain |
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 |