If you don't want to have the flu you should follow some advice fill in the gaps with must and shouldn't you shouldn't eat ice cream keep your feet warm go to anyone who has a cold wash hands well and often spend much time in shops wear a special mask take vitamins

You must keep your feet warm
You shouldn't go to anyone who has a cold
You must wash hands well and often
You shouldn't spend much time in shops
You must wear a special mask
You must take vitamins