It's over twenty years ______ we met las
题型:选择题
问题:
It's over twenty years ______ we met last. Can we recognize each other when we meet at the airport?[ ]
A. before
B. until
C. since
D. once
It's over twenty years ______ we met last. Can we recognize each other when we meet at the airport?[ ]
A. before
B. until
C. since
D. once