选出下列单词划线部分发音不同于其他单词的词
What_____Mike_____last Saturday night?
—-- My family are having a trip in Shanghai. ------_______.
—Will people live to be 300 years old? —_________.
----- Can you go to the movies with me? ------Sorry ,I can’t. I_______babysit my little sister.
It's very important ______healthy food.