当你想说你看见黑色时,你可以说:A.I see black. B.It's black.
We to Harbin last weekend. A. go B. went C. goes
--- did you go to Canada? ---By plane. A. What B. Where C. How
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