China has made a ___to do all it can to help the tsunami-hit regions of Asia
| A．devotion |
| B．commitment |
| C．allowance |
| D．combination |
He must have finished the work yesterday, _______ he ?
| A．mustn’t | B．haven’t | C．didn’t | D．hasn’t |
He must have lived here for 10 years, _______ he?
| A．mustn’t | B．haven’t | C．didn’t | D．hasn’t |
“Where is it?” “Where is _____? I don't know what do you mean?”
| A．what | B． that | C．where | D．so |
He was in great need of money, so he _____ $5, 000 for his car.
| A．paid | B．took | C．cost | D．spent |
They own two cars, not to _____ a motorbike.
| A．speak | B．say | C．talk | D．mention |