【2013 上海】The chemicals in the vegetables and fruit are bad ________ our health.
---Do your parents have the same hobby?---No.My father likes playing____ football while my mother enjoys playing _____piano.
My parents are always strict________ me.
—Mom, my classmates invited me ________ a field trip. May I go with them? —OK.
—John isn’t happy today. Let’s go and ________. —Good idea.
My grandma lives in a (n) ________ house, but she doesn’t feel________.