What if you _____ to send an essay with your application? Would you have been rejected?
A. forget B. would forget
C. had forgotten D. should forget
— Joe, don’t forget to bring your laptop with you tomorrow, OK?
— Oh, thank you. I wouldn’t bring it if you _____ me.
A. wouldn’t remind B. haven’t reminded
C. hadn’t reminded D. shouldn’t have reminded
________ anyone come to my office, please tell them I'm not available before four o’clock.
A. Might B. Could
C. Would D. Should
—What a pity! Their experiment is a failure.
—They ________ better under more favorable conditions.
A. should have done B. could have done
C. must have done D. may have done
— It’s no easy task to catch a ticket on a website that receives 1 billion clicks daily.
—I can’t agree with you more. There ________ be errors for every single step.
A．should B．must
C．will D．can
It was Mr. Zhang that helped us out of the trouble. Without his help, we ______ it so easily.
A. can’t manage B. mustn’t have managed
C. couldn’t have managed D. couldn’t manage
