题目内容
—What were you doing when the UFO arrived?— I with my dog on the street.
A.walked | B.was walking | C.is walking | D.have walked |
B
考察时态,句意:当这个飞碟到达时,你正在做什么?结合语境可知下文应该用过去进行时回答,故选B
练习册系列答案
相关题目