—What your sister ? —She is friendly and kind.
You ______ come to the office today______ someone else will do the work for you.
We are ______the people in need are helped in time.
The company was set up _______. My father has been working in it for nearly thirty years.
We should pay more attention ______teenage problems.
______he was exercising at the park yesterday morning, he found a purse under the tree.