- ______ you have passed your English exam, you should study hard.[ ]A. IfB. Even thoughC. BecauseD. Unless
- Mary always tells lies. _____ she says, nobody will believe her.[ ]A. WhateverB. WheneverC. WhereverD. However
- Milk quickly goes bad in summer it is in afridge (冰箱).[ ]A. ifB. becauseC. unlessD. when
- They will telephone the police and complain about it the noise .A. if; stopsB. unless; stopsC. if not; stopsD. unless...
- I don't like bread. I won't eat it _____ I am very hungry.[ ]A. whileB. whenC. asD. unless
- I won't take part in the party _____ Joe invites me.[ ]A. ifB. whenC. unlessD. because
- I wentto visit him, I found, _____, that he wasn't at home.[ ]A. howeverB. butC. andD. so
- We find_____playing too much computer games is bad for our health.[ ]A. thatB. itC. thisD. them
- —Would you like to go bike riding with us tomorrow ?—Sure , ______ I am busy .[ ]A. sinceB. unlessC. whenD. until
- He went out without a coat, _______it was very cold.[ ]A. butB. thoughC. sinceD. because
- You can call Mr Li _____ you are in trouble inEngland.[ ]A. beforeB. afterC. whenD. because
- John didn’t go to school ___ he was ill.[ ]A. becauseB. soC. butD. why
- James didn't come _____ the bell rang.[ ]A. untilB. atC. whenD. before
- _____ he isn’t tall enough, he is good at basketball.[ ]A. BecauseB. AfterC. AlthoughD. Since
- some students are lack of the first class _ _ they take their vacations.[ ]A. Because ofB. asC. beforeD. and