问题补充:
Although we met with some difficulties in building the railway, we were still about finishing it before the deadline.
A. consistent
B. enthusiastic
C. responsible
D. optimistic
答案:
A. consistent
B. enthusiastic
C. responsible
(答案→)D. optimistic
解析:考查形容词辨析:A. consistent 一致的,B. enthusiastic 有热情的,C. responsible负责任的,D. optimistic乐观的,句意:虽然我们在建铁路时碰到了一些困难,但我们对提前完成任务还是很乐观的。选D。