Choose the correct answer for each question

----- Nội dung dịch tự động từ ảnh -----
11. All the students.
12. It's freezing outside, so we_
13. Students
obey the school rules.
take a cab and not walk.
look at their notes during the test.
leave early.
14. I have a terrible headache, so I
15. Snow has blocked the roads. We
Exercise 4: Choose the correct answer for each question.
1 We have to/don't have to/must buy a ticket when we arrive because we paid on the internet.
2 You can't leave your bag here. You have to/can/mustn't keep it with you.
3 You have to/don't have to/mustn't take photos of the artworks, but you can buy a postcard in the gift shop.
4 You must/don't have to/mustn't make an appointment to see the nurse. Just knock on the door.
5 I have to/must/mustn't help you with your test. You must do it by yourself.
Exercise 5: Choose the correct answer.
stay here until it's cleared.
1. Look out for signs that you........go into a particular area.
A must
B don't have to
C mustn't
2. You can camp overnight in the park, but you..........keep your food in a special box so it doesn't attract
bears.
A mustn't B don't have to
C have to
3. You...........carry bear spray but it is a good idea.
A must
B have to
4. Don't get too close to any wild animals. You...........stay 100 meters away from bears.
A must
B mustn't
C don't have to
C don't have to
5. If a bear comes towards you, you.........run away.
A mustn't
B have to
C must
Exercise 6: Fill in the bla