Question

- I can hardly believe my eyes. Is that you, Lucy?
- Yes. It has been almost 20 years______ we were together.

A．since

B．before

C．after

D．until

Answer 1

A

试题分析：since 由于，自从……以来；before在……之前；after 在……之后；until直到。句意：我几乎不敢相信我的眼睛，那是你吗？露西。——是的，自从我们在一起以来，已经有将近20年了。结合语境可知选A。