问题
选择题
--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
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--What are Mr and Mrs Black doing ?
---They _____ tea in the garden.
A．are drinking
B．drank
C．have drunk
D．drink
答案：A
