155.(2007 浙江卷) The play had already been on for quite some time when we
____ at the New Theatre.
A. have arrived B. arrived C. had arrived D. arrive
(2007 重庆卷) 156.-Did Alan enjoy
seeing his old friends yesterday?
-Yes, he did. He ________ his old
friends for a long time.
A. didn’t see B. wouldn’t see C.
hasn’t seen D. hadn’t seen