The blackboard ________ (clean) when I came in.

The blackboard ________ (clean) when I came in. Jim ___ on the blackboard when i came in.A of B to C / D fro i _____cards when the teacher came in . clean the blackboard I saw Iucy clean the fioor when I came 这个句子有什么错误 The dog_________(lie) on the floor when I came in I'd like to clean the blackboard.(一般疑问句） clean i sometimes blackboard the怎么连成句子 No,I can't clean the blackboard.问句是什么? 请问怎么填- -When I came home my mother____（clean） the roomsHe sa The girl ____ (read) a book when i came in. （the teacher came in when I was reading)是否正确