Question

— 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

Answer 1

C

本题易误选B。根据后面的…is being done可以看出“因为你正在做作业，所以不能出去。”其他选项不符合句意。