I think you should ________ your studies, or you will never achieve your goal of entering an ideal college.

I was scared _______ when I saw the tiger jumped outof the cage and ran to the little child.

It’s very to play chess with old friends at home.

She has received all offer from Berkeley，but I don’t know ____________ she will accept it or not．

Goodbye! I’m glad ____ you. — ____， too.