Ex1:Điền vào chỗ trống:“do/don’t/does/doesn’t” và hoàn thiện câu trả lời (S+do/does/don’t/doesn’t): 1. ....... Jack like eating hamburgers? => Yes, ........ 2. ....... you get up early on Sundays? => No, ........ 3. ....... the students always work hard for the exam? => No, ........ 4. ....... the train leave at noon every day? => Yes, ........ 5. ....... he often play the guitar? => No, ........ 6. ....... they take a taxi to school every morning? => Yes, ........ 7. ....... Anna and Daisy visit their old teachers on winter holidays? => No, ........ 8……..water boil at 100 degree C? => Yes, ........ Ex2: Chia dạng đúng của động từ trong ngoặc ở thì hiện tại đơn. 1. Mary (walk)……………………………. to work every day. 2. We (be)………………………… often at home on summer holiday. 3. My sister (not love)……………………………….. Maths. 4. My brother (study)…………………………. English every night. 5. The Earth (go) ………………………………around the Sun. 6. Peter (not/ study)................................................very hard. He never gets high scores. 7.My sister (wash).........................................dishes every day. 8. What ………….your parents (do) ……………..? - They (be)………………….. farmers. 9. What ………………..she (do)………………..? She (be)………………..a teacher. 10. Where ……………..you (be) from?