Smile to the world, _____ the world will smile back to you.

There are so many kinds of Mp4 in the shop. We can’t decide .

I don’t know_____the future holds in store for me，but I’ll face the storms of life bravely.

Why is our head teacher here What happened–Don’t be nervous. There is ___________.

____I take the newspaper to theclassroom—No, you mustn’t. You ______ read it onlyhere.