He died of an illness ________ by smoking too much.
He died of an illness ________ by smoking too much.
A.to be caused
B.to be cost
C.cost
D.caused
答案及解析： D
解析：
cost可表示“使失去，使损失”，cause表示“引发，引起”，此处表示“由于抽烟引起的”，用过去分词caused+by短语作定语。
He died of an illness ________ by smoking too much.
A.to be caused
B.to be cost
C.cost
D.caused
答案及解析： D
解析：
cost可表示“使失去，使损失”，cause表示“引发，引起”，此处表示“由于抽烟引起的”，用过去分词caused+by短语作定语。