单项选择题

One cannot be too careful, ______

[A] can one
[B] can he
[C] can she
[D] can they

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单项选择题

I don't think he is the criminal. He seems such a ______ person.

[A] respectful
[B] respective
[C] respectable
[D] respected

单项选择题

The cottage ______ in the woods was built by George's great-grandparents.

[A] to stand
[B] standing
[C] having stood
[D] being stood

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