Some government officials in the USA have pointed out that the death of Osama Bin Laden means keen vigilance (警戒) _____ the end of terrorism.
| A．more than | B．better than | C．other than | D．rather than |
I shall never forget those years ________I lived in the country with farmers， ________has a great effect on my life.
| A．that；which | B．when；which | C．which；that | D．when；who |
________ many times，I still didn't know how to operate the machine.
| A．Having taught | B．Having been taught | C．Being taught | D．Teaching |
Tony is said ________ to New York, and now he is studying medicine in a famous college in America.
| A．have gone | B．to have gone | C．going | D．to go |
Today the Red Cross provides a number of services for the public, such as helping people________, teaching first aid and providing blood.
| A．in need | B．in return | C．in preparation | D．in anger |
Everyone in the class is expected to________in the discussion.
| A．participate | B．attend | C．donate | D．declare |