23.We can work wonders so long as we try our best, that is, we can make ____________.
----I’m sorry, but there is no smoking on this flight.----Oh, I _____ that. Sorry, I won’t again.
— May I remind you that a Mr Li is waiting outside, sir? —Oh, that is right, I ____ about it. A. forget B. had forgotten C forgot D. have forgotten
—My nephew will come tomorrow. — But I’d rather he _____ the day after tomorrow.
—What happened?—Well, the wind _____ the door open. I' ve already closed it.
I became a teacher in 1993. I _______ for 13 years by next summer.