—Catherine, I have cleaned the room for you.
—Thanks. You ______ it. I could manage it myself.
| A．needn't do | B．needn't have done |
| C．mustn't do | D．shouldn't have done |
—Such a mistake could have been avoided.
—Unfortunately, he _______ the mistake again and again.
| A．repeated | B．would repeat |
| C．had repeated | D．would have repeated |
—May I remind you that a Mr. Wang is waiting outside, sir?
—Oh, that’s right. Iabout it.
| A．forget | B．had forgotten | C．forgot | D．have forgotten |
—Did you enjoy your holiday?
—Yes, it’s the best holiday Ithese years.
| A．had | B．have had | C．had had | D．would have |
Just look at the room. My roommate ____ up his clothes.
| A．is never hanging | B．will never hang | C．never hangs | D．never hanged |
I ____ to send him a telegram to congratulate him on his marriage, but I ____ it.
| A．hoped, hadn’t managed | B．has hoped, didn’t manage |
| C．hope, don’t manage | D．had hoped, didn’t manage |