Don't complain.He simply___what he did.

问题描述:

Don't complain.He simply___what he did.
A.must do
B.had to do
C.ought to do
D.had done
为什么选B?

情景题 因为前提是DON'T complain.所以在不得以的情况下是不得不做的事情 have to do 就是不得不做的事 并非本人愿意