Question

【題目】— What were you doing when we were playing basketball yesterday afternoon?— I ________ the classroom.
A.was cleaning
B.have cleaned
C.will clean
D.clean

Answer 1

【答案】A
【解析】句意：昨天下午當(dāng)我們正在打籃球時(shí)，你正在做什么？結(jié)合語境可知下文描述的是過去某時(shí)正在進(jìn)行的動(dòng)作，故用過去進(jìn)行時(shí)態(tài)。問句用過去進(jìn)行時(shí), 答句也應(yīng)用過去進(jìn)行時(shí)。故選A。