. ---How did you know the surprising new
题型:选择题
问题:
.
---How did you know the surprising news?
---I happened _______ the event then.
A.to be covered
B.to have covered
C.to be covering
D.to cover
.
---How did you know the surprising news?
---I happened _______ the event then.
A.to be covered
B.to have covered
C.to be covering
D.to cover