— I am like a cat on hot bricks. There are so many problems that I don't know____ to deal with them.— Calm down first. Let's see what I can do for you.
It’s very nice you to me about it.
Pollution does great harm to our health. It’s necessary the environment.
The house isn’t _________ for them _______
The detective story was so exciting that Tom wanted to finish ________ it as soon as possible.
_________ is not just _______.