问题补充：
I had hoped to see her off at the station, but I too busy.
A. was
B. had been
C. would be
D. would have been
答案：
(答案→)A. was
B. had been
C. would be
D. would have been
解析：考查时态。正确答案为A，前一句谓语用had hoped，表示的是过去未曾实现的想法或打算，可以译为本想，而后一句说我太忙，这是陈述过去的一个事实，所以要用一般过去时。
