Despite such a big difference in ______ towards what one eats, there is no doubt that people in the west regard the Chinese food as something special.

Much to his joy, the old man may be able to get a hardship _____ from the government,   which covers his expense.

Hiking by oneself can be _______ and good for health. It may also be good for_______ training.

In the time of social reform, people’s state of mind tends to keep       with the rapid change of society.

 We have spent _____ money on English books.