—Is Jack on duty today?
—It __________ be him. It’s his turn tomorrow.
| A．mustn’t | B．won’t |
| C．can’t | D．needn’t |
I’m willing to help ,I do not have much time available.
| A．Because | B．While | C．When | D．Since |
It is really important to form an atmosphere among young peoplevalues self reliance(自力更生) rather than relying on parents.
| A．who | B．where | C．that | D．what |
The project turned out quite successful and he has proved himself an extremely___manager.
| A．ambitious | B．capable |
| C．energetic | D．popular |
Thank you for sending us fresh vegetables of so many kinds. You have done us great service.
| A．/; a | B．the; a |
| C．/; / | D．the; / |
— This apple pie is too sweet, don’t you think so?
— _____. I think it’s just right, actually.
| A．I hope so | B．Not really |
| C．Sounds good | D．No wonder |