May I go and play with Dick，Mum？
No，you can't go out ______ your homework is being done．（ ）
A．beforeB．asC．until
相关试题
I can't see Lucy because she is _______ the tree．（ ）
| A． |
in front of |
| B． |
behind |
| C． |
next to |
Mike lost his school ID card this morning．He is looking for _____ now．（ ）
| A． |
it |
B． |
him |
C． |
them |
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