My father lost ____keys. Now he can’t get into the house, the office or the garage (车库).
| A．a pair of | B．a piece of | C．a cup of | D．a set of |
---Could you tell me _________ tomorrow morning?
---Well, it will start at half past eight.
A. when the meeting will start
B. when the meeting started
C. when will the meeting start
Man is short ________ water mow. So something must be done to stop people _________ wasting it.
A. of; from B. for; from C. for; to
We should have ________ in ourselves We will make it if we try our best.
A. success B. confidence C. progress
---What is that? Is it an English learning machine?
---Yes. It ________ us to improve our English.
A. is used for helping B. used to help C. used to helping
Yesterday morning, when I got home, my son ________.
A. slept B. was sleeping C. is sleeping