She has laidon the floor for 20 minutes. A  B     C          D

She has laidon the floor for 20 minutes. A  B     C          D

题型:不详难度:来源:
She has laidon the floor for 20 minutes.
A  B     C          D
答案

解析
lie动词的变化是:lie --lay—lain。
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