— I don’t mind telling you what I know.
— You _____. I’m not asking you for it.
| A．mustn’t | B．may not | C．can’t | D．needn’t |
Mr Chen was ___ early thirthies when he went abroad to have his further studies.
| A．of the | B．in the | C．in his | D．on his |
Children often get presents ___ Christmas and ___ their birthdays.
| A．on…at | B．in…on | C．at…on | D．at….in |
You can find the new hospital ___ the end of the street.
| A．in | B．at | C．on | D．by |
___ the end of this new term we'll have graducated from middle school.
| A．In | B．By | C．At | D．On |
The mid-term exam is to be held ___ the end of this month.
| A．on | B．by | C．in | D．at |