I am good at math, but his English is ________ than mine.
A.much better
B. more better
C. very better
You look too tired. Why not _________a rest?
A.to stop having
B. stop to have
C. stop having
_________ exciting sport it is to go bike riding!
A.What a B. What an C. How
About six ________ people were invited to the meeting.
A.Hundred
B. hundreds
C. hundreds of
When Jim’s mother came in, he _______ his homework.
A. is doing
B. has done
C. was doing