问题

It’ s dangerous to climb the mountains or hills _____ cold and snowy days.

A:eat
B:have eaten
C:Ate
D:am going to eat;

正确答案是：

同类题型

I don’twhen I fail_______ something.

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If youto my birthday party last Saturday, you would have met Jim. —I was not in Beijing then, otherwise I to your party.

Your red coat looks so good. It stood out clearly ______ the snow.

The lazy boy ______in bed, ______he was ill.[ ]