题目列表(包括答案和解析)
--Mary, have you got my email? I sent you a birthday card yesterday.
---Oh, really! I haven't ___my mailbox yet.
A.seen B.checked C.received D.answered
--Mary, have you got my email? I sent you a birthday card yesterday.
---Oh, really! I haven't ___my mailbox yet.
A.seen | B.checked | C.received | D.answered |
—Where _____ Mary have put the empty bottles?
— She _____ them away. They must be somewhere.
A.can; can’t have thrown | B.must; needn’t |
C.must; must have thrown | D.can; mustn’t have thrown |
—Where _____ Mary have put the empty bottles?
— She _____ them away. They must be somewhere.
A.can; can’t have thrown B.must; needn’t
C.must; must have thrown D.can; mustn’t have thrown
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