正确抄写下列短语和句子。
(1)step onstep onstep on
(2)a piece ofa piece ofa piece of
(3)take care oftake care oftake care of
(4)Trees can keep us cool .Trees can keep us cool.Trees can keep us cool.
【考点】名词词义辨析.
【答案】step on;a piece of;take care of;Trees can keep us cool.
【解答】
【点评】
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发布:2024/5/27 14:0:0组卷:0引用:1难度:0.7