Did you help them ____ their room?
A. cleaned B. clean C. cleaning
Did you ___________?
A. go fishing B. went fishing C. going fishing
What ______you do last weekend?
A. do B. did C. does
Which season does Zhang Peng like best?
A.He likes winter. B.He likes season.
What are you doing?
A.I am reading a book. B.I can skate.