______ a good insulator(绝缘体) , rubber is often used in cables.

试卷相关题目

• 1We still remember once ______ round the famous tower when we were young.

  A.having taken

  B.to be taken

  C.having been taken

  D.to have taken

  开始考试点击查看答案
• 2He died in 1870 and his tomb reads, ‘________ his death, one of the England's greatest writers _________ to the world.' 

  A.At; is lost in

  B.By; is lost to

  C.For; is a loss to

  D.As; gets lost to

  开始考试点击查看答案
• 3The boy was seen ________ in the examination and was punished by the teacher.

  A.having cheated

  B.cheated

  C.cheating

  D.cheat

  开始考试点击查看答案
• 4This problem is said _____ three times at the meeting. However, they haven't arrived at a conclusion now.

  A.to have discussed

  B.to have been discussed

  C.having been discussed

  D.having discussed

  开始考试点击查看答案
• 5This machine is very easy ______ . Anybody can learn to use it in a few minutes.

  A.operating

  B.to be operating

  C.operated

  D.to operate

  开始考试点击查看答案
• 6The big fire destroyed a 28-story high-rise apartment building , _______58 people with 56 missing and more than 120 others ______.

  A.killing ,injured

  B.killed ,injured

  C.killed ,injuring

  D.killing ,injuring

  开始考试点击查看答案
• 7Much attention should be paid _________people's living conditions.

  A.in improving

  B.to improve

  C.improving

  D.to improving

  开始考试点击查看答案
• 8It's necessary to be prepared for a job interview. ______ will certainly do you good.

  A.Well dressed

  B.Well dressing

  C.Being well dressed

  D.Well dressing up

  开始考试点击查看答案
• 9He was too tired and fell asleep with a book ______ open on his knee.

  A.laying

  B.lying

  C.laid

  D.lain

  开始考试点击查看答案
• 10Don't enter the office unless _______ .

  A.you have told to

  B.told to

  C.telling

  D.you are told

  开始考试点击查看答案