— Mike, what did our monitor say just now?—Every student as well as teachers who are to visit the museum _____ asked to be at the school gate before 6:30 in the morning.
If parents have children help with housework, the children will feel needed. ______, they will learn to take care of themselves.
I have no idea ______ measures the government will take to stop the river from being further polluted.
Half of ______surveyed in 16 countries say they go first to their closest friends to share their deepest wishes and darkest fears.
I don’t know the meaning of the poem, because I have little ______with modern society.
Evidence has been found through years of study______children’s early sleeping problems are likely to continue when they grow up.