题目内容
（填适当形式）It's _____ (cloud)，and we always fly above the _____ (cloud)．
（填适当形式）It's snowing heavily．It's _____ (snow) today．
（填适当形式）The sun is shining brightly．It's _____ (sun)．
(填适当形式)It's raining outside．Let's stop ______ (play) soccer．
(填适当形式）It was time _____ (do) your homework．
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