问题

________, the boy couldn’t enter his house
A:Since the key has lost
B:The key been lost
C:Lost the key
D:Having lost the key
B:The key been lost
C:Lost the key
D:Having lost the key
正确答案是:
同类题型
People change all through the months and years, but a photograph always remams ___________.
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__ in the last examination, she was more confident of anothersuccess in the coming one
― It will be only 6 months before we take the college entrance examination.―Time flies! ________