In some of these sentences must is wrong or unnatural. Correct the sentences where necessary.

1. It's later than I thought. I must go.

2. I must work every day from 8.30 to 5.30.

3. You must come and see us again soon.

4. Tom can't meet us tomorrow. He must work.

5. I must work late yesterday evening

6. I must get up early tomorrow. I have lots to do.

7. Julia wears glasses. She must wear glasses since she was very young.