Bài 3: Cho dạng đúng của động từ trong ngoặc để hoàn thành các câu sau.
1. The dentist (fill) ___ the cavity in my tooth and it stopped (hurt) ___ afterwards.
2. (You/ need) ___ another blanker or you (feel) ___ warm enough?
3. - Did you remember (book) ___ seats?
- Oh no, I (forget) ___. I (telephone) ___ for them now.
4. - Why are you taking that big basket?
- I (buy) ___ a lot of vegetables.
5. I (not, want) ___ to meet Paul so when he went into the room, I (leave) ___.
Bài 6: Lựa chọn từ hoặc cụm từ phù hợp nhất để hoàn thành các câu sau đây bằng cách khoanh tròn A, B, C hoặc D.
1. Read these sentences about ___ your teeth healthy.
A. keep B. you keep C. to keep D. keeping
2. Do the following things ___ healthy teeth.
A. to have B. having C. for having D. have
3. Avoid ___ a lot of sweet.
A. eating B. to eat C. eat D. for eating
4. It's important ___ tooth decay.
A. avoid B. avoiding C. to avoid D. avoided
5. You can also improve your teeth if ___ healthy food.
A. to have B. having C. you have D. have
6. Unfortunately, you cannot stop tooth decay simply by ___ your teeth.
A. you brush B. brushing C. to brush D. brushed
7. One way to stop tooth decay is ___ less sugar.
A. to eat B. for eating C. you eat D. you are eating
8. Fluoride toothpaste helps ___ tooth decay.
A. preventing B. prevented C. to prevent D. for preventing
9. Many coutries have also started ___ fluoride to drinking water.
A. add B. with adding C. they add D. to add
10. They have proved that fresh fruit ___ teeth healthy.
A. to keep B. keep C. keeps D. keeping
