Question

【題目】When I _______my pet dog along the road, I thought of a new way to clean up the mess.

A. am walkingB. walkC. was walkingD. have walked

Answer 1

【答案】C

【解析】

句意：當(dāng)我正沿著路遛狗的時(shí)候，我出了一個(gè)新辦法來(lái)收拾這一團(tuán)亂。am walking 現(xiàn)在進(jìn)行時(shí)；walk動(dòng)詞原形；was walking過(guò)去進(jìn)行時(shí)；have walked現(xiàn)在完成時(shí)。根據(jù)句中I thought of…可知，這句話(huà)應(yīng)用過(guò)去時(shí)態(tài)，根據(jù)句意可知，這里表示過(guò)去正在進(jìn)行的一個(gè)動(dòng)作，故用過(guò)去進(jìn)行時(shí)，選C。