Question

Have you ever been toShanghai,Mary? Yes,I ___ there for three days with my parents last month.

A. have gone B. have been C. went D. was

Answer 1

D. was
for three days 有段时间, C不行,go是点动词.

last month.上个月,显然是过去时.

Answer 2

B。have been。去了人已经回来了。have gone 是在去的途中或回来的路上。