Question

【題目】My mother ______ the window already, so the room looks much brighter.

A.had cleanedB.has cleaned

C.is cleaningD.will clean

Answer 1

【答案】B

【解析】

考查時(shí)態(tài)。句意：我媽媽已經(jīng)把窗戶擦好了，所以房間看起來明亮多了。根據(jù)“so the room looks much brighter”可知此處強(qiáng)調(diào)過去的動(dòng)作對現(xiàn)在造成的影響，應(yīng)該用現(xiàn)在完成時(shí)，故B項(xiàng)正確。