Thefarmaswellasitsneighboringhillsweoncespentsomuchtime...

问题详情：

The farm as well as its neighboring hills we once spent so much time______ on a new look as recently as this year.

A. has taken         B. on having taken        C. on has taken           D. having taken

【回答】

C

知识点：定语从句

题型：选择题