EX 10. Thay đổi các câu thành dạng phủ định và dạng câu hỏi.
6.John had lunch at the cafeteria last Monday.
7.Jimmy and Jane got up early yesterday morning to jog.
8.She was old enough to take the responsibility.
9.He bought the milk at the shop over there.
10. They planted trees in the spaces between the houses.