问题描述：
---____has legs but can't walk,jack?
---Oh,so easy a question.Table,chair and so on.
A.what is it B.what is that
C .what is it that D .what that is it
The manager told his secretary not to let other people bother him at the office____it was absolutely necessary
A.unless B.though C.because D.while
---Oh,so easy a question.Table,chair and so on.
A.what is it B.what is that
C .what is it that D .what that is it
The manager told his secretary not to let other people bother him at the office____it was absolutely necessary
A.unless B.though C.because D.while
问题解答：
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