Mr. Li will check our homework this afternoon. _____ you _____it —Not yet. I am doing it right now.

Have you bought the best-sell book in the store near our school —–Yes, I _____ it three days ago,but I hear that they ________

When I was in Spain last summer, I ______ quite a lot of Spanish

When did you see Mr Green – .

Is there any possible way to help the children get rid of such a bad habit?— To be honest, it’s very hard, but we ______on this problem