Question

Have you ever been to Shanghai,Mary? Yes.I ( )

Have you ever been to Shanghai,Mary?
Yes.I ( )there for three days with my parents last month.
A.have gone B.have been C.went D.was
When was David born?
He was born ( ) june 12,1989.
A.atB.inC.onD.for

Answer 1

BB,第一题for+一段时间用完成时，因为持续性用have been第二题出生具体某一天用in

Answer 2

C C具指用on