Question

【题目】________ is bad for a player if he or she _________ have a healthy lifestyle.
A.It; doesn't
B.It; isn't
C.This; doesn't
D.This; isn't

Answer 1

【答案】A
【解析】句意：如果他或她没有健康的生活方式，对于运动员来说是有害的。句式：It is +形容词+for sb+to do sth做某事对于某人来说是怎样的。第二空后有实意动词，所以用助动词do的适当形式来帮助构成否定句。所以答案是A。