单项选择

• 1、

  Don't ______ to let me know if there is anything I

• 2、

  Let's hang up some paintings on these ______ walls

• 3、

  At the conference he expressed some personal views

• 4、

  They have developed techniques which are ______ to

• 5、

  Man must stop ______ the earth's atmosphere.

• 6、

  No one has yet succeeded in explaining the ______

• 7、

  Unfortunately, very few sheep ______ the severe wi

• 8、

  They discussed the problem three or four times, bu

• 9、

  Well, let's put our heads together and find ______

• 10、

  The old couple decided to move out of town to a qu

• 11、

  They overcame all the difficulties and fulfilled t

• 12、

  Bob tried in vain to trick his little brother ____

• 13、

  I was ______ to find his article on such an ______

• 14、

  It was in 1777 ______ Vermont, threatened with inv

• 15、

  ______ a professor of physics at Massachusetts Ins

• 16、

  He didn't ______ and he failed the examination.

• 17、

  The two boys had so ______ in common that they soo

• 18、

  As fuel prices rose, bus companies raised their fa

• 19、

  ______ mainly for the invention of the telephone,

• 20、

  If Dorothy had not been badly hurt in a car accide

• 21、

  If you undertake this project you are bound to ___

• 22、

  I suddenly realized that he was trying to ______ q

• 23、

  The three hours I spent in the school library ____

• 24、

  Thousands of people ______ to see the parade.

• 25、

  The real trouble ______ their lack of confidence i

• 26、

  Recently the newspapers have reported several ____

• 27、

  The actual cost of the building was much higher th

• 28、

  Henry looked very much ______ when he was caught c

• 29、

  At the beginning of this semester, our history pro

• 30、

  Here are some toys. You can ______ one or two for

• 31、

  I am afraid I won't have any influence over my 18-

• 32、

  The team really looks good tonight because the coa

• 33、

  Excuse me, but it is time to have your temperature

• 34、

  Jane's dress is similar in design ______ her siste

• 35、

  ______ it is you've found, you must give it back t

• 36、

  Consumers should do ______ than simply complain ab

• 37、

  Beth ______ California in 1981 and ______ in Texas

• 38、

  Frank had worked for two years to be a carpenter,

• 39、

  There was more than ______ rain and snow last year

• 40、

  It was not a serious accident, the car needs only