题目内容

听力原文：My aunt bought me a very beautiful bike for my birthday.

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无效民事行为自法院或仲裁机构确认无效时无效。 ()

A. 正确
B. 错误

听力原文：My mother is doing housework now.

【C10】

A. making
B. helping
C. watching

One afternoon Billy went out without his trousers.

A. Right.
B. Wrong.
C. Doesn't say.