问题补充:
In order not to have Lily on weight, Mom has to cook some food with little fat for her.
A. put
B. putting
C. to put
D. puts
答案:
(答案→)A. put
B. putting
C. to put
D. puts
解析:考察固定搭配。固定搭配have sb do sth让某人做某事;句意:为了不让Lily发胖,妈妈不得不做了一些脂肪含量很少的食物给她。故A正确。