问题

________ are you staying in the mountains?—For three days.[ ]
A:How far
B:How long
C:How old
D:How often
B:How long
C:How old
D:How often
正确答案是:
同类题型
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I’m sorry I can’t stop with you. I have much work to do.
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_______ the morning of March 31, she made an important decision in her life. [ ]