—I think trees ____________ twice a week in such hot weather.—Yes, I agree. Or they may die without water.
#36181
A
must water.
B
are watered.
C
must be planted.
D
must be watered.
推荐题目
 — Have you got any chocolate? —__________.
#37982
A
Yes, we haven’t.
B
No, we haven’t.
C
Yes, have.
D
No, have not.