问题补充：
A healthy life is frequently thought to bewith the open countryside and home-grown food.
A. tied
B. related
C. involved
D. associated
答案：
A. tied
B. related
C. involved
(答案→)D. associated
解析：考查动词的区别。be associated to的意思是“与……有关系，与……为友”，要表达相似的意思，应该是be related to,be involved in,tied也经常和to搭配。
