TFBOYS’ songs ________ sweet and many of us like listening to them.
Why don’t you ________?A.write down it B.write down C.write it down
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