Must I finish my homework first? No, you ________.
A.mustn’t | B.don’t |
C.can’t | D.needn’t. |
I ________ the living room.Look,it is clean.
A.clean B.am cleaning C.have cleaned
The children ________ at the table when their mother cooked in the kitchen.
A.wait B.are waiting C.were waiting
--How many times has Chang’eⅠ ________ the Moon?
--Only once.It went there last year.
A.go to B.gone to C.been to
We have learned English ________ six years.
A.since B.for C.on
I ________ this English book since I came to Hefei No.28 High School.
A.have bought B.bought C.have had