Do you know the man from ________ house the pictures were stolen？

It is said that ____ young people may lose the abilities to hear after five years if they listen to MP4 players which are too loud for more than five hours a week.

After discussing, the students ________ some good ideas to work on the project. — That’s great!

Mr. Black, I find ______ difficult to play the piano well.—Oh, I think you just need to practice more

________you _____your homework yet? —Yes, I ___it ten minutes ago.