---I think English is ____unimportant subject.
---I don’t think so. It is ____useful tool when we talk with foreigners.

If people change wetlands to make ______ for farms ,birds will not have enough
________ to live.

This company ______ long-time holidays ________ the workers every year.

—The cakes are quite yummy! Can I have one more?
—Sorry, there is _________ left. What about some biscuits?

Vivien worked very hard at all her lessons. ______, she became the top student in her class.