Mostbirdsfinditsafetosleepinth

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更新 2022-09-03
科目英语
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挑错有奖

Most birds find it safe to sleep in the trees, but ____ they have eggs or young chicks, they don’t use a nest.

A．why

B．how

C．unless

D．where

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The flowers will die soon unless often ________.

A．watering

B．to water

C．water

D．watered

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难度：未知

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The report shows that we’re making some progress but ______ we need to make greater efforts.

A．that

B．whether

C．what

D．why

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难度：未知

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A good idea ______me! Which of the following is Not Right?

A．struck

B．occurred to

C．came upon

D．happened to

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难度：未知

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A number of tests have been conducted to _________ that these drugs have no side effects.

A．find out

B．look for

C．make sure

D．work out

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难度：未知

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---Why did Tom become wealthy this year?
---Because he sold _________________ he did last year.

A．four times as many furnitures as	B．four times as furnitures many as
C．four times furniture as much as	D．four times as much furniture as

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