问题
I think trees ____________ twice a week in such hot weather.—Yes, I agree. Or they may die without water.
A:must water.
B:are watered.
C:must be planted.
D:must be watered.
B:are watered.
C:must be planted.
D:must be watered.
正确答案是：
同类题型
Excuse me．Is the next bus stop far from here? —Not very far．It onlyyou five minutes on foot．
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