I have a sister who works in Beijing.=I have a sister.The sister works in Beijing.

题目

I have a sister who works in Beijing.=I have a sister.The sister works in Beijing.

答案

其他两个回答都对,但是在英语写作里,i have a sister who works in beijing,是一个独立句independent clause,the sister works in beijing 是一个related sentenc.他们不应该分开,应该合起来,可以像你第一句那样,或i...