Was Bill played basketball very well helped the blind man across the street.A. that; th

问题补充：

Was Bill , played basketball very well, helped the blind man across the street.

A. that; that; who

B. it; that; that;

C. it; who; that

D. this; who ; who

答案：

A. that; that; who

B. it; that; that;

(答案→)C. it; who; that

D. this; who ; who

解析：本题考查强调句及定语从句。本题强调主语Bill，后面为定语从句作主语，故用who，选C。