Mr Smith is a strict but good teacher cares about both our study and life.A. one who B. w

问题补充：

Mr Smith is a strict but good teacher, cares about both our study and life.

A. one who

B. whoever

C. the one

D. the person

答案：

(答案→)A. one who

B. whoever

C. the one

D. the person

解析：句意：斯密斯先生是一个严格的好老师，是一个既关心学习又关心生活的人。whoever=anyone who,不符合语意，故排除。这里one是teacher的同位语，who引导的是定语从句，它在从句中作主语，不能省略，故排除CD；故选A。