hot tea/ helpful/ It's /when/to drink/ the flu./ you have
It's helpful to drink hot tea when you have the flu.
emergency/ on hand./ to have/ It's/ numbers/ practical
It's practical to have emergency numbers on hand.
a bad headache/when/a good idea/ not/ It's/to watch tv/ you have
It's not a good idea to watch tv when you have a bad headache.
you are/ It's/ to rest/ when/ important/ sick.
It's important to rest when you are sick.
a good/ some/idea/vitamin C/It's/to take
It's a good idea to take some vitamin C.
at home/ It's /to have/ a first aid kit /useful
It's useful to have a first aid kit at home.