1 Mary has been working for the last month, so they will have enough money.

2. It's long time since I have seen your brother Paul.

3. He was stange ever he had the accident.

4. He has been living in this town since 1980.

5. Sue has been listening to music since she bought a CD player.

6. You look very guilty. What have you done?

7. How many books have you collected for a year?