综合练习四I
将下列句子改成否定句和一般疑问句
Maryishavingsuppernow
Davidhasmanygoodfriends
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LucyandKateareinthebedroom
Sally'sparentshaveabighouse
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Theboyisveryhappytoday
Theyliketheparkverymuch
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Theyworkveryhardonweekdays
Jimcleanshisroomeveryday
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将下列句子改为复数
Thispencilislongangblack
Hehasaredsweater
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