Choose the best answer.

Choose the best answer.
1.That mountain is so beautiful.It is covered_________ snow.
A.of B.in C.with D.for
2.More and more Chinese people are familiar _____ Houston Rocket because of Yao Ming .Yao is familiar_______ all the basketball fans.
A.to...with B.for...with C.with...for D.with...to
3.After finishing the maths homework,let's go on ______the English text.
A.to recite B.reciting C.recite D.recited
4.Shall we try _____the maths priblem in another way?
A.to do B.do C.did D.doing
5._________you have already known the mews,I need't say it again.
A.Though B.Now that C.Before D.After