The teacher made a request that all the homework ( ) before class.A.should hand in B.must be handed inC.were handed inD.be handed in
问题描述：
The teacher made a request that all the homework ( ) before class.
A.should hand in
B.must be handed in
C.were handed in
D.be handed in
答
D
request后面的宾语从句要用should do这种虚拟语气，should可以省略。
答
A，request做要求解释的时候，从句(should)+do sth,should 可省略。
答
D啦.
it is suggested/ requested/ ordered/ insisted ---that
从句仍然要用虚拟+ (should) do
是虚拟语气的一种用法