lay(放置)是及物動詞 需要主體...
As Michael entered the room, he found many books lying scattered on the floor.
Michael進入房間時,他發現很多書散落在地板上。
光就 "平放" 來講 :
被動 --> (東西)被平放 lie lay lain lying ex. I see a book (being) lying on the table.
主動 --> 平放(東西) lay laid laid laying ex. Mary is laying a book on the table.
21 • As Michael entered the room, he fou..-阿摩線上測驗