_______ about the loss of Malaysia Flight MH370 keep everyone worried. I wish we could find the_______ of the accident as soon as possible.

Our government is taking action to improve the environment. 

---The Olympic Games of 2016 will_____ in Brazil.---I hope our country can do better than in London.

Granny often asked us _______ water in our daily life. 

---Your sister bought a camera last week, didn’t she? ---Yes, and it     her a lot.