Circle the correct answers to complete the sentences.

1. You must/mustn't respect older people. You can learn some valuable lessons from them.

2. We don't have to/have to wear uniforms on weekdays. It's the rule at our school.

3. You should/mustn't ask your parents for permission if you want to colour your hair.

4. In the past, women had to/must do all house work. It was one of their duties.

Choose the best answer to complete the sentence.

4.You ________ be nice to girls. Be a gentleman!

A. must to

B. should not

C. should

D. have not to

5.________ I call her to come?

A. Shall

B. Should be

C. Have to

D. Need

6.You ________ cross the intersection when the traffic light is red.

A. must

B. must be

C. must not

D. musted

7.You ________ do this exercise. It’s not compulsory.

A. have to

B. do not have to

C. must

D. need

8.It’s 11 p.m. already. I ________ leave now.

A. am

B. should not

C. do not have to

D. must

9.How often do you go to ________ dentist?

A. a

B. an

C. the

D. x

10.I have ________ problem. Can you help me?

A. a

B. an

C. the

D. x

11.Thank you very much! It is ________ useful piece of advice.

A. a

B. an

C. the

D. x

12.Would you like to travel in ________ space?

A. a

B. an

C. the

D. x

13.This is ________ most outrageous outfit I have ever seen.

A. a

B. an

C. the

D. x

14.Being a ________ student really benefits you when you study abroad.

A. fluent

B. bilingual

C. clue

D. mysterious

15.You should listen to ________ speakers to boost your pronunciation skills.

A. fluency

B. treasure

C. intensive

D. native

16.Buckingham ________ is a must-see destination if you visit England.

A. World

B. Country

C. Capital city

D. Palace

17.Burj Khalifa is the tallest building in the world, which is in Middle ________.

A. East

B. North

C. South

D. West

18.To broaden your ________, studying new words every day is a good way.

A. grammar

B. communication

C. vocabulary

D. conversation

Read the Learn this! box. a) Underline must/have to + infinitive in the dialogue. Then complete the following sentences using must mustn't have to don't have to.

1 A hotel receptionist ______ be good at communication.

2 You ______ pay for the tickets in advance.

3 Examinees ______ switch off all modern gadgets during the exams.

4 You ______ leave litter lying around.

Choose the best answer among A, B, C or D to complete the sentence:

6. The final examination will be held ................ December 12th 2014.

A. in B. on C. at D. to

7. You have read this article on the website, ............... ?

A. don’t you B. aren’t you C. didn’t you D. haven’t you

8. They went on working ................. it started to rain.

A. though B. because C. but D. despite

9. The girl wishes she .................. in Hue for the festival next week.

A. had stayed B. was staying C. stay D. could stay

10 Miss Lan stopped .................. her letter because she had to leave for the hospital.

A. to write B. write C. writing D. wrote

11. Do you know the man ................. car Jack is driving.

A. who B. whom C. which D. whose

12. Lan: “I wish I could visit your village again some day, Ba.” => Ba: “.................. .”

A. Too true B. Yes, let’s

C. What a day ! D. You’re always welcome !

13. John: “I think we should take a shower to save energy.” => Linda: “....................... .”

A. Never mind. B. It is very nice of you to say so.

C. Yes, I’d love to. D. That’s a good idea.

14. Robots will be .................. the housework in the future.

A. used to do B. used to doing C. using to do D. using to doing

15. He ................ his job last month and since then he ................. out of work.

A. lost/ was B. lost/ has been C. has lost/ was D. lost/ has been was

3. Read the Learn this! box and complete the rules. Use must, mustn't, needn't and don't have to. Use your answers to exercise 2 to help you.

(Đọc hộp Learn this! và hoàn thành các quy tắc. Dùng must, mustn't, needn't and don't have to. Sử dụng các câu trả lời trong bài 2 để giúp bạn.)

LEARN THIS! must, mustn't and needn't/ don't have to

a. We use (1) _____ to say that something is necessary or very important to do.

b. We use (2) _____ and (3) _____ to say that something is not necessary.

c. We use (4) _____ to say that something is prohibited (a negative order)

Note: We can also use passive forms after modal verbs.

Helmet must be worn at all times.

III. Choose the best answer a, b, c or d to complete the sentence.

1. Water pollution can be harmful _______ fish and animals that live along the river.

A. to                  B. at                   C. for                      D. in

2. Ways must be found to prevent the poisonous gases ________ polluting the air.

A. without           B. from              C. off                     D. by

3. She’s come up ________ amazing new ideas to help protect the environment.

A. to                B. at                     C. with                    D. of

4. Too much of light pollution results ________ increase in the energy consumption.

A. in                  B. of                   C. to                    D. on

5. Children should be aware ________ the environmental issues we’re facing.

A. with                                    B. at                                        C. in                                        D. of

6. Air pollution has many effects _______ the environment and living organisms.

A. in             B. of                   C. for                       D. on

7. The volcano has erupted approximately once every ten years_________ 1970.

A. since               B. in               C. from                       D. for

8. We can see the stars at night ________ light pollution.

A. since                                   B. as                                            C. because                               D. due to

9. Water pollution________ the death of all forms of life in the water bodies.

A. occurs                                 B. results                                     C. creates                                D. leads to

10. Many flights were cancelled ________ the smoke from forest fires.

A. so                                        B. because                                  C. because of                          D. result in

11. _________  plastic takes so long to break down, it pollutes the land and water.

A. Even though                       B. While                                       C. Since                                   D. Because of

12. ________ the tsunami warning, there were still lots of people on or near the beach.

A. Due to                                B. Although                                   C. Because                              D. Despite

13. Since 2005, India_________ the world’s largest English-speaking population.

A. has                                      B. is having                                 C. had                                     D. has had

14. Over the past five years, Australia’s population_______ by 1.86 million people.

A. increases                             B. is increasing                           C. has increased                      D. is increased

15. The 12th English Teaching Conference________ on 5 – 12 next month.

A. takes place                          B. took place                               C. will take place                    D. has taken place

16. Everyone__________ when the earthquake_________the small town two days ago.

A. was sleeping/ hit                B. were sleeping/ hit                     C. slept/ was hitting                D. slept/ hit    

17. English__________ as the primary language in many countries around the world.

A. speak        B. is spoken         C. spoken            D. speaks

18. An average of 10 people in Florida_________ by lightning strikes annually.

A. is killed                               B. are killed                                     C. were killed                          D. have been killed

19. Scientists predict the South coast_________ by a large hurricane in two days.

A. will be killed      B. will kill        C. was killed          D. is killed

20. By the time the rescuers_________ , they_________ out of food and water.

A. arrived/ ran                         B. arrived/ have run                     C. arrived/ had run                  D. arrived/ had ran

21. Before that day in Hawaii, we_________ a volcanic eruption.

A. never saw                           B. has never seen                       C. had never seen                    D. were never seen

22. So far, some of the storm damaged roads and bridges_________.

A. already repaired                    B. had already repaired          

C. were already repaired             D. have already been repaired

23. If we all use public transport more, we_________ reduce air pollution.

A. help                                           B. will help                             C. would help                          D. helped

24. Many wildlife habitats will be destroyed if people________ polluting the environment.

A. keep             B. keeps             C. will keep                 D. kept

25. If global warming________, temperatures_________ even higher.

A. continues/ would rise               B. continued/ will rise             C. continue/ will rise              D. continues/ will rise

III. Choose the best answer a, b, c or d to complete the sentence.

1. Water pollution can be harmful _______ fish and animals that live along the river.

A. to                  B. at                   C. for                      D. in

2. Ways must be found to prevent the poisonous gases ________ polluting the air.

A. without           B. from              C. off                     D. by

3. She’s come up ________ amazing new ideas to help protect the environment.

A. to                B. at                     C. with                    D. of

4. Too much of light pollution results ________ increase in the energy consumption.

A. in                  B. of                   C. to                    D. on

5. Children should be aware ________ the environmental issues we’re facing.

A. with                                    B. at                                        C. in                                        D. of

6. Air pollution has many effects _______ the environment and living organisms.

A. in             B. of                   C. for                       D. on

7. The volcano has erupted approximately once every ten years_________ 1970.

A. since               B. in               C. from                       D. for

8. We can see the stars at night ________ light pollution.

A. since                                   B. as                                            C. because                               D. due to

9. Water pollution________ the death of all forms of life in the water bodies.

A. occurs                                 B. results                                     C. creates                                D. leads to

10. Many flights were cancelled ________ the smoke from forest fires.

A. so                                        B. because                                  C. because of                          D. result in

11. _________  plastic takes so long to break down, it pollutes the land and water.

A. Even though                       B. While                                       C. Since                                   D. Because of

12. ________ the tsunami warning, there were still lots of people on or near the beach.

A. Due to                                B. Although                                   C. Because                              D. Despite

13. Since 2005, India_________ the world’s largest English-speaking population.

A. has                                      B. is having                                 C. had                                     D. has had

14. Over the past five years, Australia’s population_______ by 1.86 million people.

A. increases                             B. is increasing                           C. has increased                      D. is increased

15. The 12th English Teaching Conference________ on 5 – 12 next month.

A. takes place                          B. took place                               C. will take place                    D. has taken place