They didn’t go to bed ________ they finished their homework.

—Are you going to have a football game on Saturday ________ on Sunday?
—On Sunday.

Although he is a little boy,_____he speaks English well.

We’ll climb the mountain _______ the weather is bad this weekend.

--The cars were all late__________ the bad weather.
A.because             B.thanks to         C.because of

I don’t like science _______ it’s difficult.

You should study harder______ it is too late to catch up.

______ my father ______my mother likes pop music.

Li Na is       famous        all the tennis fans in China know her.　

________ I’m hungry, _______ I have some food.