EX 5
1. It’s very cold outside, you should wear a coat.
2. I’m sometimes tured in my Maths class, I should get more sleep.
3. I never remember what homework I have to do, I must concentrate
4.I’ve got a really important exam tomorrow, I mustn’t go to bed late
5. I usually get very hungry before lunch I should get a snack
6. Olivia really wants me to help her, I must call her later
EX 6
1.B
2.F
3.D
4.E
5.A
6.C