摘要：27．----- May I go to play football with Dick now, Dad? ----- No, you can’t go out your wok is being done. A．before B．until C．as D．after

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---May I go to play football with Dick now, Dad?
---No, you can’t go out ________ your work is being done．

－May I go to play football with Dick now, Dad?

－No, you can’t go out ________ your work is being done．

A．before

B．until

C．as

D．after

---May I go to play football with Dick now, Dad?---No, you can’t go out ________ your work is being done．