Life is like riding a bicycle. ________ your balance, you must keep moving.
| A．Keeping | B．To keep |
| C．Keep | D．Being kept |
There is no doubt that holding such____ National Day parade will significantly enhance (提高) ____national pride and self-confidence of Chinese People.
| A．a; the | B．a; a | C．the; the | D．the; a |
The CASS said the scores were based on corporate responsibility and financial reports,. But some people raised__________ about whether the information was reliable.
| A．problems | B．doubts | C．hands | D．heads |
I was so young. You__________ better than to rely on me
| A．should have known | B．should know | C．must know | D．must have known |
Out of__________ did the cat come and then it ran across the yard.
| A．somewhere | B．anywhere | C．everywhere | D．nowhere |
With films like Avatar proving__________ in cinemas, many technology experts believe 3D is now set to take over the home market,
| A．difficult | B．easy | C．common | D．popular |