Can you please tell me where ____________ the post office?

It's important for teenagers    time with friends.

There are many ways____learn a language. I think using it is the ___way.

—I have trouble_____  my new computer.
—Don’t worry. I’ll show you how_____ it.

—Pop star Allen Su has done more than just donating money.          
—Yes, he has made a song  ______ We're together ______  the earthquake victims.                

It's rainy today, you need _____ an umbrella with you.

He is expecting me _________tomorrow.

He often tells the children _______ when they play water sports.

The book is very easy _________.         

I’m not sure, but he’s supposed        sometime next week.