You were silly __________ your car, otherwise it wouldn’t have been stolen.
| A．not locking | B．to not lock | C．not having locked | D．not to lock |
246. Nelson Mandela played and is still playing a leading ________ in ending apartheid(种族隔离政策) in South Africa.
| A．use | B．roles | C．role | D．Parts |
245. After work, the young man and his colleagues went to the nearest _____ and sat down at the table for a grand dinner.
| A．bar | B．Cafe | C．restaurant | D．dining-room |
244. It is widely believed that a good _____ between the two countries is important for the development of both China and the USA.
A. connection B. link C. relation D. Relationship
243. There are many kinds of media(大众传播). Which of the following do not belong to the same category?
| A．TV, radio, newspaper | B．radio, newspaper, magazine |
| C．radio, magazine, internet | D．radio, internet, railway |
242. Every day the teacher gives us a one-minute__________ in English.
| A．test__________ | B．exam__________ | C．contest__________ | D．Quiz |