Eric often _________his aunt before he moved to the city.
has visited
visits
visited
There some good advice about how to reduce air pollution on the Intement.( )
A.areB.isC.have
I was writing a letter she was making a telephone call.( )
A.whileB.whenC.before
After dinner,he used to computer games,but now he gets used to .( )
A.play,walkB.playing,walking
C.play,walking
He has failed times,but he won't give up a chance.( )
A.third,fourB.three,fourth
C.third,fourth
﹣What's matter with you?
﹣I have fever.( )
A.an,theB.the,/C.the,a