--He is so unhappy. What made him disappointed?
--It’s his plans. You can’t imagine what it’s like to feel that all your plans for the future have _________.

Mary would never do anything that was not _________ of by her parents in order not to make them unhappy.

According to the American law, parents must keep their kids _______ except when they are in school.

The better _______ you have of words, the better chance you have of saying exactly what you mean.

The press conference was concerned _______ the Diaoyu Islands issue and every journalist present was concerned _______ China’s final decision.

A new ______ to teaching languages is being used here, and it has turned out to be very helpful to the students.

. --- Do you have any trouble explaining the sentence?         ---No, _____

With the help of his friends, he has _____a good business over the years.

---Where did you ______ our chemistry teacher?
---It was in the supermarket ______ I purchased moon cakes.

People in China don’t like hugging each other when meeting, which _________ a common __________ in some European countries.