I tried my best to treat my son kindly , but he was so naughty that my patience ______at last.
A used up B got away C went down D gave out
I ________ have been more than six years old when the accident happened.
| A．shouldn’t | B．couldn’t | C．mustn’t | D．needn’t |
On Halloween, children in America like to _____ as ghosts to frighten people.
| A．make up | B．put on | C．dress up | D．spy on |
---I have some big news for you. You’ve been accepted as a member of our club.
--- ________ That’s great!
| A．Pardon? | B．Congratulations! | C．Good idea! | D．Have I ? |
President Obama held talks with Chinese President Hu Jintao in Beijing, _____ economic recovery, climate change and stopping the spread of nuclear weapons.
| A．which was discussed | B．in which they-discussed |
| C．when they discussed | D．which discussed |
The government has taken some measures to solve the shortage of electricity, but it may be some time ________ we have enough power.
| A．since | B．after | C．unless | D．before |