Question

【題目】To keep healthy, I for one hour in the afternoon.

A.am exercisingB.exerciseC.am doing exercisesD.do exercises

Answer 1

【答案】B

【解析】

句意：為了保持健康，我下午鍛煉一個(gè)小時(shí)。

考查動(dòng)詞用法及時(shí)態(tài)。am exercising正在鍛煉；exercise鍛煉；am doing exercises正在做練習(xí)題；do exercises做練習(xí)題。根據(jù)“To keep healthy”可知，做的是體育鍛煉，而后半句“in the afternoon”可知，時(shí)態(tài)是一般現(xiàn)在時(shí)。故選B。