—The problem is very difficult. I'm afraid you can't work it out now. — I fail this time, I will try it again.
Please do remember that if you fail, make ______failure a stepping stone to ______success.
.You ________things about. Look! What a mess in your room!
Our football ream will compete against the Japanese team this evening. Let’s go and ________shall we?
I don’t think he is the right person ________ .
It is generally considered unwise to give a child________he or she wants.