问题
He___ along the seaside___ a tsunami came．
A:walked；when
B:is walking；as
C:was walking；when
D:was walking；while
B:is walking；as
C:was walking；when
D:was walking；while
正确答案是：
同类题型
Is this the second time that you _________ the Summer Palace?[ ]
.—Shall we attend the concert this evening?—Great idea, ___ we can do some shopping first
－When shall weset off－We ____ startoff at five o’clock if it ___ raining by then
Have you decided where to spend your holiday — Not yet . I ______ go to Britain .