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用所给动词的适当形式填空说明为什么这样填什么时态1.it's only 7 o'clock,but mary(sleep

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用所给动词的适当形式填空说明为什么这样填什么时态1.it's only 7 o'clock,but mary(sleep)
in bed,she (not go)to bed so early every night.she is ill today2.look tom and his parents(swim)in the river now3.what are you doing now i'm(put)on my clothes4.he enjoys(listen)to music5.there(be)an old man and some children in the park6.can she(swim)yes she can she(swim)in the pool now7.what's he doing he(write)a litter to his parents8.don't (look)at the blackboard9.let's(go)to school together now10it(look)like a cat就急快
用所给动词的适当形式填空说明为什么这样填什么时态1.it's only 7 o'clock,but mary(sleep
1 is sleeping ( 现在进行时);
doesn't go ( every day 用于一般现在时,主语三单的否定句要加助动词does)
2 are swimming ( look 开头,后面的动词用进行时,主语是复数(三个人)
3 putting 现在进行时问,用现在进行回答
4 listening 固定用法:喜欢做某事enjoy doing sth
5 is ( there be 是就近原则, an old man是单数)
6 swim ( can 情态动词后接动词原形), is swimming ( now 现在,用于现在进行时)
7 is writing ( 同2)
8 look ( don't 助动词后接动词原形)
9 go ( let's do sth 固定用法‘ 让我们做……吧!
10 looks ( 主语三单)

再问: 1.it's only 7 o'clock,but mary(sleep)in bed 麻烦把1到10是什么时态说清楚谢谢麻烦了
再答: 前面已答了
再问: 2,4,5,7,8,9,10看不懂谢谢了
再答: 认真看