There are still many problems ahead of us, but by this time next year we can see light at the end of the .
A. battle
B. day
C. road
D. tunnel
网友回答
A. battle
B. day
C. road
(答案→)D. tunnel
解析： A. battle 战役，B. day 日子，C. road 公路，D. tunnel隧道，我们前面仍然有许多问题,但明年的这个时候我们可以看到隧道尽头的光明。因为提到light，应该是隧道，选D。