Do you know the flowers need watering every day?这句话正确吗

问题描述:

Do you know the flowers need watering every day?这句话正确吗
我所写的是need be watered ,但是答案是need watering .所以,我想问一下,到底是我错了,还是答案错了.
要具体点啊.要肯定的真正答案.

这题不难哦.
你句意理解的也正确.
但忘记了一点,
need to be done = need doing
你错了.
要改的话是:need to be watered