问题
选择题
—This bus is always late, _______?
—Sure, it is. [ ]
A. is not it
B. isn't it
C. isn't the bus
D. doesn't it
答案
答案:B
—This bus is always late, _______?
—Sure, it is. [ ]
A. is not it
B. isn't it
C. isn't the bus
D. doesn't it
答案:B