the room needs ____before we move ina.cleanedb.cleaningc.being cl_英语解答

the room needs ____before we move in
a.cleaned
b.cleaning
c.being cleaned
d.to clean
哪个对,主要是其他3个为什么不对?

人气：132 ℃　时间：2019-12-15 00:00:18

解答

cleaning.
sth needs to be done =sth needs doing.
这就是need 后面跟被动语态的两种形式.