There's no way of knowing why one man makes an important discovery ______ another man, also intelligent, fails.

试卷相关题目

• 1—Will you go to Tom's birthday party tomorrow?  —No，________invited to, for she is the last person I'd like to see.

  A.if

  B.until

  C.when

  D.even though

  开始考试点击查看答案
• 2She opened her eyes and was about to cry out ______ she heard her father urgently telling her to keep quiet.

  A.when

  B.while

  C.before

  D.after

  开始考试点击查看答案
• 3_____ you have the chance to study, you'd better make full use of your time.

  A.Even if

  B.Now that

  C.In case

  D.So that

  开始考试点击查看答案
• 4Don't litter in the street in Singapore, ______ you could be arrested.

  A.or

  B.and

  C.but

  D.so

  开始考试点击查看答案
• 5The so-called Asia—Pacific century will make no sense_____ China develops．

  A.unless

  B.when

  C.if

  D.as

  开始考试点击查看答案
• 6— Will you go to Sarah's wedding party? —No, ____ invited. I'm too busy to get away.

  A.unless

  B.even though

  C.if

  D.when

  开始考试点击查看答案
• 7You can't avoid _____ your job tomorrow ______ you work hard today.

  A.losing; unless

  B.to lose; though

  C.losing; until

  D.to lose; if

  开始考试点击查看答案
• 8Mary got up early________ she could prepare breakfast for her brother.

  A.so that　　

  B.although

  C.as if　　

  D.even if

  开始考试点击查看答案
• 9The fireman succeeded in saving all the people in the house on fire, _______they knew they were in great danger themselves.

  A.because

  B.since

  C.unless

  D.though

  开始考试点击查看答案
• 10 ______ a student is found cheating in the exam, he will not escape from being punished.

  A.While

  B.Though

  C.Until

  D.Once

  开始考试点击查看答案