问题

Is this the first time that you _____ here?
A:visit
B:are visiting
C:had visited
D:have visited
B:are visiting
C:had visited
D:have visited
正确答案是:
同类题型
It was not long _____ he was bornthat his mother died of illness.
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The girl is new here and she lives _______. So she seems _______.
It took ________ building supplies to construct these energysaving housesIt took brains, too.[ ]
Recycling is one way to protect the environment; reusing is ___.