Choose the best answer among A, B, C or D to complete the following sentences

Choose the best answer among A, B, C or D to complete the following sentences. 

1. Would you mind opening the window?

A. Yes, I would.       B. No, I wouldn’t.    C. No, thanks.           D. Not at all.

2. I know you worked really ___________- this semester.

A. hardly                   B. harder                   C. hardest                  D. hard

3. She advised me_______________late..

A. to not be               B. not to be               C. not be                    D. not being

4. She was born_______- May 25th,1990.

A. of                           B. at                           C. in                           D. on