单选题 复数形式such trees。There are still many problem ahead of us, but by his time next year we can see light at the end of the _____.无
【正确答案】 D
【答案解析】句意： 我们还面临许多问题， 但明年这个时候我们就能看到隧道尽头的光了。 根据tunnel判断此空为light。