He was unaware of our coming.
—Jack won the first place in the writing competition. —_______. He had prepared for it for a long time.
Have you decided _______ the poor children? —Yes. I will help them by sending them some books and clothes.
_____ I was in the USA, I made a lot of friends there.
—John is in a bad mood these days. Do you know why? —His grandfather has just passed away. Let’s try to _______.
If our government ______ attention to controlling food safety now, our health ______ in danger.