--Don't be so disappointed.I’m sure that you can do better in the next exam. --Yes, but I ___

--Don't be so disappointed.I’m sure that you can do better in the next exam. --Yes, but I ____ this time.

#89035

should be more careful

could be more careful

should have been more careful

must have been more carefully

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On rainy days, accidents _____ happen sometimes on steep roads.

#87694

should

shall

must

can

_____ to do the work, I should do it some other day.

#89407

If were I　　

I were　

Were I　

Was I

He commanded that the students ______the classroom before he returned.

#86770

didn’t leave

wouldn’t leave

not leave

couldn’t leave

—I don’t suppose they could have finished their experiment,      they?—       , they are still doing it in the lab.

#87846

could; Yes

didn’t; No

have; No

couldn’t; Yes

If I had tried my best last term, I ________more progress then.

#89057

could make

would make

must have made

could have made

共2810题