______ the prices of color TV sets down by50%, the company had a very hard time.

“We can’t go out in this weather,” said Bob, ______ out of the window. [ ]

There is so much noise in the yard that I can’t _____ my attention on my work.

My mother often _______some money_______some useless things.

It is announced that big prizes will go to ________ finishes the assignment on time