1 . I __________you when I was in Paris as I didn’t know your address.
| A．should have visited | B．couldn’t have visited |
| C．must have visited | D．can have visited |
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2 . She ________ have participated in the activity, for she was doing paperwork in the office then. (用适当的词填空)
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3 . 我妹妹昨天下午在电影院见到他了，所以他不可能出席了你的讲座。
My sister met him at the cinema yesterday afternoon, so he__________ your lecture.(attend)
My sister met him at the cinema yesterday afternoon, so he
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4 . 据说他们已经从大陆游到了岛上，但他们不可能做到，因为连接两者的海洋太宽了。
It is said that they have swum to the island from the continent, but they________ ________ ________ ________ because the ocean between them is too wide. (do)
It is said that they have swum to the island from the continent, but they
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5 . 我从未玩得这么开心——这是完美的一天。
I________________ myself more－it was a perfect day.
I
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