Question

【題目】––Where’s your mom, Tom ?

––She _______ some washing when I got home.But now she isn’t at home .

A. was doing B. did C. has done D. does

Answer 1

【答案】A

【解析】句意：－湯姆，你媽媽在哪兒？－我到家時(shí)她正在洗衣服。但現(xiàn)在她不在家。A. was doing過(guò)去進(jìn)行時(shí)態(tài)形式；B. did一般過(guò)去時(shí)形式；C. has done現(xiàn)在完成時(shí)態(tài)形式；D. does一般現(xiàn)在時(shí)態(tài)形式。我到家時(shí)，她在洗衣服。表示一個(gè)過(guò)去動(dòng)作發(fā)生時(shí)，另一個(gè)過(guò)去動(dòng)作正在發(fā)生，把正在發(fā)生的動(dòng)作用成過(guò)去進(jìn)行時(shí)態(tài)。故選Ａ。