There is some evidence that the two types of sleep, dreaming and dreamless, ________ on the life-style of the animal．

试卷相关题目

• 1The headmaster said that ________ students absent is five．

  A.the number of

  B.a number of

  C.numbers of

  D.a lot of

  开始考试点击查看答案
• 2Since there was a rapid increase in his business, his efforts _______．

  A.paid in

  B.paid off

  C.paid back

  D.paid for

  开始考试点击查看答案
• 3There was an accident in the factory, but no one knew who was _________ of the trouble．

  A.at the end of

  B.at the top of

  C.in the middle of

  D.at the bottom of

  开始考试点击查看答案
• 4By the way, there is one point I should like ________．

  A.your opinion

  B.your opinion for

  C.your opinion on

  D.opinion of yours

  开始考试点击查看答案
• 5She knows how to make full use of her time and her parents never put ________ on her to work hard．

  A.force

  B.pressure

  C.burden

  D.weight

  开始考试点击查看答案
• 6Do remember to wash the vegetables ________．

  A.as clean as possibly

  B.as cleanly as possible

  C.as clean as possible

  D.as clean as you do

  开始考试点击查看答案
• 7He spends all his spare time collecting stamps．He seems to ________ this．

  A.be crazy about

  B.be concerned about

  C.be native to

  D.play a part in

  开始考试点击查看答案
• 8In many schools, students are encouraged to _______ insurance to cover any problems like unexpected injuries．

  A.try out

  B.take out

  C.work out

  D.make out

  开始考试点击查看答案
• 9Shoo!All of you should ________ the changes while doing your experiment．

  A.center in

  B.concentrate your attention on

  C.focus to

  D.be concentrated upon

  开始考试点击查看答案
• 10Her illness ________ bad food．

  A.due to

  B.was due to

  C.was due

  D.was to due to

  开始考试点击查看答案