【单选题】默认情况下,使用()进行中英文输入法的切换。
【简答题】I eat a lot of fruit and vegetables because I want to be __________ (health) .
【单选题】I think I have a healthy lifestyle. I eat a lot of fruit and vegetables, and I'm a ________ drinker.
【简答题】I eat a lot of fruit and vegetables because I want to be __________ .