Ex.3 a,b,c

1. I have written
2. Have you seen
3. I haven’t learnt
4. Has been snowing
5. I have rent

b.

1. I will call you as soon as i get home
2. If you don’t come inside now you will miss the programme
3. They won’t let you in if you are not over 18

C.

1. I might stay in tonight
2. I probably won’t finish today
3. He likely be hungry when he gets home