------- Now you can see how serious the situation is !
-------- Yes. We _____something before it got so bad .
A.should do | B.must do | C.must have done | D.ought to have done |
推荐套卷
------- Now you can see how serious the situation is !
-------- Yes. We _____something before it got so bad .
A.should do | B.must do | C.must have done | D.ought to have done |