* Complete the sentences, using the modal verbs in brackets and the information in the box.

1. If you want to go to town, I ……………………………………………. (can)
2. If you want to be better, you ……………………………………………. (should)
3. If you want to lose weight, you ……………………………………………. (should)
4. If the suitcases are too heavy, I ……………………………………………. (can)
5. If you want to pass the next exam, you ……………………………………………. (must)
6. If Matthew is going to a job interview, he ……………………………………………. (should)
7. If you don’t learn the lessons carefully, you ……………………………………………. (can)
8. You ……………………………………………if you want to be healthy. (ought to)
9. You ……………………………………………after each meal if you want to have healthy teeth. (have to)
10. If you want to attend the course, you ……………………………………………. (must)

EXERCISE 1: Complete the sentences. Use the information in the box and the modal verb in parentheses.
quit it at once
be very happy
leave the building in order
go out for a walk
find another one
be very worried
come to visit me more
understand the lectures well
buy a smaller one
1.     If you have toothache, you mustseethedentisL ............................    (must)
2.     If it rains, we ...................   (should    not)
3.     If the class is full, I.........................    (will)
4.     If it costs too much, we..................     (must) 
5.     If you don’t come home early, your parents...........................     (may)
6.     If that job is boring, Susan .......................     (may)
7.     If you listen carefully, you..............................     (can)
8.     If a fire breaks out, everyone.................................     (have to)
9.     If you have more time, you.......................................     (ought to)
10.     If you phone your parents more often, they.....................................     (must)

EXERCISE 1: Complete the sentences. Use the information in the box and the modal verb in parentheses.

quit it at once

be very happy

leave the building in order

go out for a walk

find another one

be very worried

come to visit me more

understand the lectures well

buy a smaller one

1. If you have toothache, you mustseethedentisL ......................(must)

2. If it rains, we ...........................(should not)

3. If the class is full, I................................ (will)

4. If it costs too much, we.......................................  (must) 

5. If you don’t come home early, your parents...............................  (may)

6. If that job is boring, Susan................................   (may)

7. If you listen carefully, you..................................  (can)

8. If a fire breaks out, everyone....................................  (have to)

9. If you have more time, you..............................  (ought to)

10. If you phone your parents more often, they ..................................(must)

IV, Complete these sentences using an appropriate modal construction with the verbs in brackets:
1, If he had been doing his job properly, he really (review) ........................... the situation more than once a year.
2, Survivors felt there (be) ........................... an investigation last year into the cause of the disaster.
3, His annual income is reported (grow) ........................... rapidly over the last few years.
4, Only after they (watch) ........................... the documentary, did they contribute to the Save the Wolves fund.
5, We owe it to future generations (ensure) ........................... we spend enough tax money on green energy alternatives.