.-What are you busy with? -The conference _______ in our city next week.
To make room for teachers’ correction, the students had better write their composition _____.
Cleaning women in big cities get __________ by the hour.
_________ the letter, tears kept coming to her eyes.
He is ________ a friend to me. He is in a way my English teacher.
Not until my mother came back_________ go to bed.