1)

1. has his tyres checked

2. has his oil changed

3. has his car repaired

4. has his shoes cleaned

5. has his gardening done

6. has his letters typed

2)

1. She should have it repaired.

2. He should have them cleaned.

3. They should have it repaired.

4. He should have it cut.

5. They should have it serviced.

6. She should have them checked.

7. He should have it repaired.

8. He should have it checked.