Oct. 1st, ____ is our National Day, is celebrated with singing and dancing.
| A．which | B．as | C．when | D．that |
. We have every reason to believe that ______ 2010 World Expo in Shanghai will be ______ success.
| A．/; a | B．the; / | C．the; a | D．a; a |
Running in the morning fresh air _________our health and we _________it.
| A．benefit to; benefit | B．benefits; benefit from |
| C．benefits from; benefit | D．benefits, are benefited by |
. His honesty is beyond question.In other words,it is____ that he has stolen the laptop computer.
| A．certain | B．sure | C．out of question | D．out of the question |
Studies have shown that scientists produce not only some of the best ideas, but also _____ bad ones.
| A．a great many of | B．a great deal of |
| C．;a large amount of | D．a great many |
. ---William has asked me for a loan of 50 dollars. Should I lend it to him?
---Certainly. Because ______ he would try to borrow it from me.
| A．otherwise | B．therefore | C．besides | D．however |