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科目: 来源:不详 题型:单选题

I won’t pass the exam ______I work hard.
A.wheneverB.becauseC.ifD.unless

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科目: 来源:不详 题型:单选题

You have coughed for several days, Bill. Stop smoking,________ you’ll get better soon.
A.butB.afterC.orD.and

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科目: 来源:不详 题型:单选题

I have two children, and ________ of them are working in the west of China.
A.allB.bothC.neitherD.either

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科目: 来源:不详 题型:单选题

Take the exam carefully, _______ you won’t get full marks.
A.butB.andC.orD.so

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科目: 来源:不详 题型:单选题

He was riding to school         it began to rain.
A.asB.soC.whileD.when

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科目: 来源:不详 题型:单选题

We won’t start the meeting         our teacher arrives.
A.whileB.untilC.whenD.or

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科目: 来源:不详 题型:单选题

Finally, tired          happy, we took the subway back home.
A.andB.butC.orD.more

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科目: 来源:不详 题型:单选题

Leo is my good friend. He likes tennis         ping-pong.
A.butB.orC.andD.of

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科目: 来源:不详 题型:单选题

Bill won’t make any progress __ he studies harder than before.
A.ifB.whenC.becauseD.unless

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科目: 来源:不详 题型:单选题

-- _______ the soldiers are very tried, __ they keep on working.
--They are great. We must learn from them.
A.Because; /B.Though; /C.Because; soD.Though; but

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