---Why do you like summer best? ---______ I can swim in the lake. A.Because B.So C.And
Whatthe children doing? A. is B.am C. are
We can see lotsinteresting things. A. for B. of C. in
We are playingbasketball. A. a B. / C.with
Hedrawing. A. am B.is C.are
看一看，选一选。
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