Eyedoctorsrecommendthatachilds

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更新 2022-09-03
科目英语
题型单选题
难度中等
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挑错有奖

Eye doctors recommend that a child's first eye exam ________ at the age of six months old.

A．was

B．be

C．were

D．is

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Only after her mother came to help her for the first few months ______ to begin her project.

A．did she allow	B．had she allowed
C．was she allowed	D．is she allowed

题型：未知
难度：未知

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Thanks to Dr Yuan’s research, the UN has more tools in the battle to rid the world _____ hunger.

A．of

B．on

C．off

D．at

题型：未知
难度：未知

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______ is even more important is that the earth cooled down, water began to appear on its surface.

A．When

B．That

C．Which

D．What

题型：未知
难度：未知

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Jane _____ these families of chimps for many years and helped people understand how much they behave like humans.

A．had studied

B．studied

C．studies

D．has studied

题型：未知
难度：未知

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It is so wet there _____ the trees are extremely tall, some measuring over 90 meters.

A．what

B．which

C．that

D．why

题型：未知
难度：未知

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