He is _______ clever boy that he can solve _____ many difficult problems.

Look at the wall. There are some pictures ______ it. —And there are two windows ______ it. [ ]

It ________ some time _________ I realized the truth.

Do you know the girl______Mary Smith? —Yes. She’s my friend.

I wonder what you _________ me for a haircut.– $ 60 at least.