问题
选择题
The flowers his friend gave him will die unless every day.
A.water
B.watering
C.watered
D.to water
答案
答案:C
题目分析:考查非谓语。从结构判断此处是连词+分词形式做状语,动词water和主语flowers之间是被动关系,所以用过去分词。故C选项正确。句意:如果不是每天浇水的话他朋友给他的花就会死了。