Scientists believe native Americans arrived by crossing the land bridge that connected Siberia(西伯利亚)and more than 10，000 years ago．
A. this is Alaska B. Alaska is now C. is now Alaska D. what is now Alaska
------Are you satisfied with the result?
-----Not at all．It couldn’t be .
A. any worse B. any better C. good D. bad
The thief broke in, trying to open the safe, but ___________.
A. in no way B. in vain C. without effect D. at a loss
The heart is _________ intelligent than the stomach, for they are both controlled by
the brain.
A. not so B. not much C. much more D. no more
Everyone had an application form in his hand, but no one knew which office room
_____.
A. to send it B. to be sent to
C. to send it to D. to have it send
---I’m afraid I can’t finish the book within this week.
---_____.
A. Please go ahead B. That’s right
C. Not at all D. Take your time
