I’ve already told you that the fourth and last part of the article ______ the most difficult to understand.
| A．is | B．was | C．are | D．were |
The 2010 Shanghai World Expo is intended to achieve our common goal: ________world that is safer, cleaner and healthier than ________ one we’re living in.
| A．the; the | B．a; / | C．a ; the | D．the ; / |
.When _____ if he had seen her, Mattew just shook his head.
| A．asking | B．asked | C．being asked | D．being asking |
Speaking of the songs he has written, I think this is probably his _____ one.
| A．better-known | B．well-known | C．best-known | D．most-known |
.A small plane crashed into a hillside five miles to the east of the city, _____ all on board.
| A．killed | B．killing | C．kill | D．to kill |
.- Did you enjoy yourself at the party?
- Yes. I’ve never been to _____ one before.
| A．a more excited | B．the most excited | C．a more exciting | D．the most exciting |