Ex 1

1 They may build a new library

2 The building might look very modern

3 The council might suggest a new site

4 The new library may cost a lot of money

Ex 2

1 should 2 can 3 must 4 ought to 5 might 6 may

Ex 3

1 You ought to go home

2 You shouldn’t ignore the school rules about dress

3 We ought not to be late

4  I mustn’t forget to take my sorts kit to school

Ex 4

1 get over 2 get out of it 3 get rid of 4 get on with 5 get away