--What are Mr and Mrs Black doing ?---They tea in the garden.A. are drinkingB. drankC. ha

问题补充：

--What are Mr and Mrs Black doing ?

---They tea in the garden.

A. are drinking

B. drank

C. have drunk

D. drink

答案：

(答案→)A. are drinking

B. drank

C. have drunk

D. drink

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