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__ CArEFully iF Any ChAngE oCCurs whEn Doing Exp...

A 试题分析:本题考查非谓语动词.考查方式为识别是否适用非谓语动词.根据上下文可知,后面提供了两个从句,一个为条件状语从句、另一个为时间状语从句的省略句,由此可知,在某条件下和某时间,建议某人做某事.因此,应该选择动词原形,引起的是祈使句.所以,本题选A.

doing 改为 done ,这里表示真是条件,不用虚拟语气

distant语意最强,强调距离.far除特殊情况外,侧重长距离.也可用作引申意义.

your teacher must be listened to carefully

when i was 8 years old, i once decided to run away from home. with my suitcase 36 and some sandwiches in a bag, i started for the front door and said to mom, “i'm leaving.” “if you want to 37 , that's all right,” she said. “but you came into

把内存擦一下 换个插槽试试 是内存问题

1,如果你手头上有工作要做anything,可表示任何事.它可以做为everything的否定形式,但在句中没有否定词的情况下都做任何事的意思.if 加上anything 表示如果有任何事物.

三种用法 一丶be used to do sth/ be used for doing sth 被用来做某事 二丶be/get used to doing sth 习惯做某事 三丶used to do sth ,过去常常做某事

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