I forgot to return the book to you yesterday. So I _____________today. [本题2分] (　　) might do it (　　) must do it (　　) had to do it (　　) must have to do it解答参考：

问答题

I forgot to return the book to you yesterday. So I _____________today. [本题2分] (　　) might do it (　　) must do it (　　) had to do it (　　) must have to do it解答参考：

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单选题

I intended to( )him, but I forgot to do so.

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单选题

______Newton started to do experiments， he forgot about the time.

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单选题

We forgot to bring our tickets,but please let us enter, ？

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单选题

——I forgot to carry my permit with me, would you please let me in?——( ).

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