Mom, I watch TV tonight?
Sure,but you finish your homework first.( )
A.can; mustn'tB.may; could
C.may; can'tD.can; must
——He can write well. ——He_____, but he doesn’t. He’s too lazy.
Rick has learned a lot about Chinese culture _____ he came to China.
--Sorry, I overslept. I forgot to set the alarm. --Your clock ________. Perhaps you should buy a new one.
Be quick, we’ll be late for the meeting.
I still remember my first teacher __________ we haven’t seen each other for many years.