---Must we finish the work all day?
---________. You can do it tomorrow.
| A．Yes, you must. | B．No, you mustn’t. |
| C．No, you needn’t. | D．Yes, you may. |
— They have a lot of rules at their house.
—_________
A. So do I. B. So we do. C. So have I.
We are short _________ energy and water_________ the overpopulation.
A. of; because B. of; because of C. in; because
— Could you tell me _________ ?
— Sorry, I don’t know.
A. where are my socks
B. where can I find my socks
C. where my socks are
— Hello, this is Tom. Is Jack in?
— Sorry, he _________to his uncle’s home. May I take a message?
A. has been B. go C. has gone
— Hello! Could I speak to Mr. Liu, please?
— Sorry. He _________ for a month.
A. had been away B. was left C. has been away