1.Is Tom walking with his parents
2.Did Ann do herhomework last night
3.Did you go ti the museum last year?
4.Can you sing English songs
5.Did you recite an English poem at his birthday party
改否定句
1.They aren't making carbs now
2.There isn't a picture on the wall
3.There aren't any computers in our school
4.There isn't any meat on the plate
5.There aren't any meat on the bookstore
6.There isn't any milk in the cup
7.Don't put them away please