Put some butter on a slice of bread and add a teaspoon of butter. What else?- Next ______ some tomatoes.

It’s hard to ________ this kind of plant. You have to water it every day.

Lily often helps her sister _____ her homework. [ ]

I believe _____ important to have a rest when you feel very tired.

_____ is the TV?—It’s 4000 yuan. [ ]