问题

“May I go and play with Dick this afternoon, Mum?” “No, you can’t go out _______ your work is being done.”

A:before
B:until
C:as
D:the moment

正确答案是：

同类题型

The bus came andwe_________.

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Which of the following underlined parts is different in pronunciation from others

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Mr. Xu, can you tell us how to learn English well —Sure. But remember nothing can be learned hard work.