来自柳莎莎的问题
请从语法角度加以说明~（1）39.themedicine________cool,cleananddry.A.mustkeepB.mustbekeptC.mustbecarriedD.mustbein49.________hisstampshehascollectedarefromCanada.A.twohundredsB.hundredofC.twohundredofD.twohund
请从语法角度加以说明~（1）
39.themedicine________cool,cleananddry.
A.mustkeepB.mustbekeptC.mustbecarriedD.mustbein
49.________hisstampshehascollectedarefromCanada.
A.twohundredsB.hundredofC.twohundredofD.twohundred
53.water_______for________outfires.
A.use…putB.isused…putC.use…puttingD.isused…putting
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2020-10-11 07:14