---I’m a little weak in Maths. I don’t know how to improve it. --- Why not __________ Daniel for help? He’s very good at it.

The synonym of the word “need” is ______.

—Will you give me a hand? I have some trouble_______ the scientific problem.—Don't worry. I'll try my best to help you _______.

—How much did this CD _______ you, Sally? —I got it for 5 dollars.  

—The terrible rainstorm hit the small villages and     .—How unlucky the villagers were!