问题

Have you ever _ to bring yourhomework to school—Yes. I _ it at home once last term.

A: not to walk
B: to walk
C:walking
D: not walking

正确答案是：

同类题型

________is known to us all is that the 2012Olympic Games will take place in London.

Mom, I’ m going to the graduation dance tonight but I don’t think I look attractive enough— Oh, darling, don’ t worry _______

Wallace and Darwin didn’t agree _____ different forms of life had begun [ ]

They haven’t made knownwhere they are to hold the conference

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