Bài 17:

1. C

2. D

3. D

4. A

5. B

6. C

7. C

8. B

9. A

10. A

Bài 18:

1. do

2. go

3. play

4. go

5. play

6. go

7. go, do

8. do

9. play

10. go

Bài 19:

- Study: physics, history, vocabulary, Vietnamese, science.

- Have: a headache, a house, breakfast, big eyes, school lunch.

- Do: yoga, karate, judo, gymnastics, aerobics.

- Play: golf, chess, rugby, volleyball, bowling, table tennis.

- Go: dancing, sailing, swimming, cycling.

Bài 17:

1: B

2: D

3: D

4: A

5: B

6: C

7: C

8: B

9: A

10: A

Bài 18:

1: go

2: go

3: play

4: go 

5: play

6: go

7: go .... do

8: do

9: play 

10: go

Bài 19:

Study: science, Vietnamese, history, vocabulary, physics 

Have: school lunch, big eyes, breakfast, a house, a headache

Do: aerobics, gymnastics, yoga, karate, judo

Play: table tennis, volleyball, bowling, rugby, chess, golf

Go: (còn lại)

Chúc bạn học tốt!