10.昨天你打扫了房间，应说：
A.I cleaned my room yesterday.
B.My room is dirty..
9.你想夸对方是个好孩子要如何表达：
A.You are a good boy.
B.I am helpful.
8.你想帮妈妈做家务，要怎么说：
A.Let me help you ,mum.
B.I helped my mum.
7.你想告诉他人，你完成了作业，怎么说：
A.I washed my clothes.
B.I finished my homework.
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