1.the workers are going to___the road very soon(wide) 2.they have to pay their college___by
问题描述：
1.the workers are going to___the road very soon(wide) 2.they have to pay their college___by
themselves (expensive)
答
widen 动词,拓宽.
2.they have to pay their college_expensively__by themselves.
expensively 副词,昂贵的.
themselves 复数形式