His story is ______ his own experience when he was studying in Harvard University.
| A．based on | B．based in | C．basing on | D．basing in |
His speech was heard by a group of five judges , all of_____agreed that it was the best.
| A．whom | B．who | C．them | D．that |
Electricity is not easy _________ when an earthquake happens.
| A．to get | B．to be got | C．getting | D．get |
Mary wanted to ______ her experiment, but her parents encouraged her to continue.
| A．give up | B．give in | C．give out | D．give away |
He is _________ and I believe he can keep the secret for you.
| A．determined | B．stubborn | C．reliable | D．frightened |
I hear that you will go to Beijing this afternoon. Who ______ you off at the airport?
| A．sees | B．saw | C．is seeing | D．has seen |