Babies’ health is much more likely to be affected if parent smokesA. bothB. noneC. neithe

问题补充：

Babies’ health is much more likely to be affected if parent smokes．

A. both

B. none

C. neither

D. either

答案：

A. both

B. none

C. neither

(答案→)D. either

解析：这题考查代词的用法：both两者都，none三者以上都不，neither两者都不。Either两者中任何一个。句意是：婴儿的健康更有可能被影响，如果父母任何一方抽烟的话。因为父母是两个人，用either。