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科目: 来源:不详 题型:单选题


Friends are angels who lift us to our feet _______________ our wings have trouble remembering how to fly.
A.unlessB.becauseC.thoughD.when

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科目: 来源:不详 题型:单选题

-Do you know the boy________ is sitting next to Peter?
-Yes. He is Peter's friend. They are celebrating his ________ birthday.
A.who; ninthB.that; ninethC./; ninethD.which; ninth

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科目: 来源:不详 题型:单选题

---Miss Li, where did you visit last week?
--- I visited a big company __________ ships are made.
A.thatB.whichC.whereD.whose

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科目: 来源:不详 题型:单选题

--Haven't you seen Mr. Wilson at the lecture?
--Yes, but he had left _________ I could ask him any questions.
A.whenB.beforeC.afterD.as

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科目: 来源:不详 题型:单选题

You can't camp________you like these days. Many natural areas are now under protection.
A.whichever B.whereverC.what D.when

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科目: 来源:不详 题型:单选题

                food is hard to find, few birds remain throughout the year.
A.AlthoughB.WhereC.UnlessD.When

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科目: 来源:不详 题型:单选题

I remember everything ______it had happened yesterday.
A.in caseB.even ifC.as long asD.as if

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科目: 来源:不详 题型:单选题

If you find yourself ______ no one will help you, please call me.
A.whereB.whenC.whichD.what

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科目: 来源:不详 题型:单选题

Scarcely had they settled themselves in their seats in the theatre ______ the curtain went up.
A.thenB.beforeC.whenD.then

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科目: 来源:不详 题型:单选题

Martin drove along for more than one hour _____he found a convenient parking place.
A.after B.once C.until D.Since

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