Question

It's seven o'elock in the evening．We________the Science Museum from one o'clock

It's seven o'elock in the evening．We________the Science Museum from one o'clock to four o'clock this afternoon．
A. visited
B. were visiting
C. have visited
D. will visit

Answer 1

答案B
分析：说话时间是在晚上，visit的动作是在过去发生的，就是多了from one o'clock to four o'clock这个时间状语，此时应该强调visit的动作在这个时间范围内延续地发生，要用过去进行时。