问题补充:
I spend the Saturday afternoon with my old friends in the zoo, but they did not come.
A. was going
B. was to
C. will
D. was about to
答案:
A. was going
(答案→)B. was to
C. will
D. was about to
解析:考查过去将来时表示虚拟语气,was/were to do有本打算做…而没做,句意是:我本打算和老朋友在动物园度过周六下午,可是他们没到。Was going后面少to,C项应该是would,D项表示过去即将做,而且不能和具体的过去时间连用。选B。