10. I had been to Beijing long _______ you visited it.
A: before
B: till
C: after
D: when
A: before
B: till
C: after
D: when
举一反三
- I had been to Beijing long _______ you visited it. A: before B: till C: after D: when
- I had been to Beijing long _______ you visited it.
- I’m sorry you’ve been waiting so long, but it’ll still be some time ____ Brian get back. A: before B: since C: till D: after
- It’s a long time . A: since I saw you last B: after I saw you last C: before I saw you last D: when I saw you last
- I ____________ never ____________ the Great Wall although I have been to Beijing many times. ( had, have; visit, visited )