27. Now and then they would ______ our house and have a talk with us.
Mr. Black is very happy because the clothes made in his factory have never been _________.
The Hengxin Square is located in ____________ used to be our canteen.
Helping others is a habit, ________ you can learn even at an early age.
My grandmother always said you should sweat to reduce the when you have the flu.
—Many students like Miss Wang. —That's ________her classes are lively and interesting.