Ilovejunkfoodverymuch,butItrytoeat___onlyonceaweek.

I have a stomachache, doctor.— Take these pills and you’d better ______ cold food. [ ]

_____ do you go to your grandma’s home? —Twice a week. [ ]

What’s the weather _________ in Beijing?——It’s terrible in summer, too cold and humid.

下列表示重量单位的是______.