A lot of things ____ by people to save the little girl now.A.are doing B.are being done C.has been done D.will be do
问题描述：
A lot of things ____ by people to save the little girl now.
A.are doing B.are being done C.has been done D.will be do
答
B. are being done 选他
答
选B
thing和do是被动
所以在B C中选
has用于单数 而things为复数 所以选B
答
B
答
b
答
B
因为有now,所以用进行时
而且这里是被动语态