It could be ________ for Jackson who seldom puts his hearts into his studies to be admitted into a key university.

When we speak to people， we should be ___________ .

The government _______ a committee to deal with the accident which happened there two days ago.

_____manners are very important in every country is known to all，but the trouble is that different countries have different ideas about ______good manners are.

By the time my mother came back from work, my sister and I supper and were waiting for her at the table