六年级上册英语练习册练习题解答(说理由)
1.theair_____theballoonhighinthesky.
AkeepBmakeCkeeps
2.trees_____theairclean
AkeepsBkeepingCkeep
翻译句子:
what'sthefunctionoftheairtothethingsthesky?
Canyousaymorefunctionsoftheair?
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