How many teachers are there in your school?—About two _________.

Long,long time ago,there was a mountain.At the top of the mountain _______ ,in which an old monk used to tell stories.

She’ll come back in _______ hour ,

What do you often do at weekends?—I often _________ my grandparents.

What do you want to be when you grow up?-I want to be_______ social worker. Many people are in great need of our help.