问题
选择题
The road construction is based on the agreement, one of ________ purposes is to ensure its completion on time.
A.which
B.whose
C.that
D.what
答案
答案:B
B 考察定语从句。句义:道路建设是以协议为基础的,协议的一个目的是确保道路建设按期完工。在定语从句中,先行词在从句中做定语,使用关系代词whose。