用括号内所给词的适当形式填空
问题描述:
用括号内所给词的适当形式填空
The trees must ______(water)three times a week at first.
答
be watered 被浇水.
用括号内所给词的适当形式填空
The trees must ______(water)three times a week at first.
be watered 被浇水.