1b
1. What has happened to virtual Matt?
He found a wallet in the gym. The head teacher thought he is going to steal it, but he just wanted to take a look, to find out whose the wallet is. In the end, he got excluded.

2. Why is Dylan shocked?
Because Matt is excluded.

3a
1c Sorry I'm late.
2a I"ve just arrived, too.
3f You won't belive what's happened.
4e I don't want to know.
5d Tell me all about it.
6b Oh dear.

3b
1. The teacher's got our test results. I don't want to know.
2. We had a great holiday. Tell me all about it.
3. The lesson started ten minutes ago. Sorry I'm late.
4. What's the matter? You won't belive what's happened.
5. Sorry I'm late. I've just arived, too.
6. I hurt my arm when we were playing football. Oh dear.

2a
a 10
b 3
c 7
d 5
e 9
f 2
g 1
h 8
i 4
j 6