—When _____ you _____ the Great Wall? —L
题型:选择题
问题:
—When _____ you _____ the Great Wall?
—Last month.[ ]
A. do; visit
B. will; visit
C. did; visit
D. are; visiting
—When _____ you _____ the Great Wall?
—Last month.[ ]
A. do; visit
B. will; visit
C. did; visit
D. are; visiting