— Have you ever been to Shanghai ______?
— Yes. I went there two weeks ______. It is a modern city.
A.before; ago | B.ago; ago |
C.ago; before | D.before; before |
— Have you ever been to Shanghai ______?
— Yes. I went there two weeks ______. It is a modern city.
A.before; ago | B.ago; ago |
C.ago; before | D.before; before |