I am sure the workers_______(finish)building the road in less than two weeks.
问题描述：
I am sure the workers_______(finish)building the road in less than two weeks.
答
will finish (in +一段时间，常与一般将来时连用）
答
will finish
因为后面是 in less than two weeks 表示在两周内
是未来的时间 所以要用将来时