Đề bài

have to - don't have to

affirmative	negative
I/ We/ You/ They have to He/she/it has to (It's the rule.) You have to check out at 2:00 p.m. (Bạn phải làm thủ tục trả phòng lúc 2 giờ chiều.)	I/ We/ You/ They don't have to He/ She/ It doesn't have to (It isn't necessary.) They don't have to bring medicine with them. (Họ không phải mang theo máy móc.)

Exercise 2. Read the theory box. Use the information in the leaflet to complete the sentences. Use have/has to, don't / doesn't have to.

(Đọc khung lý thuyết. Sử dụng thông tin từ tờ rơi để hoàn thành các câu. Sử dụng have/ has to, don’t/ doesn’t have to.)

1. We ____________ keep the campsite clean.

2. Campers ____________ pack a first aid kit.

3. John ____________ leave his dog at home.

4. We ____________ put out the fire with water.

Phương pháp giải

- have to/ has to + V: phải (quy định)

- don’t / doesn’t have to: không cần

Lời giải của GV Loigiaihay.com

1. have to

2. don’t have to

3. doesn’t have to

4. have to

1. We have to keep the campsite clean.

( Chúng ta phải giữ cho khu cắm trại sạch sẽ.)

2. Campers don’t have to pack a first aid kit.

( Người cắm trại không cần phải đóng gói bộ sơ cứu.)

3. John doesn’t have to leave his dog at home.

( John không cần phải để chú chó của mình ở nhà.)

4. We have to put out the fire with water.

( Chúng ta phải dập lửa bằng nước.)