Parents should pay attention to areas _______ their child is having difficulty and spend extra time to help him or her master those skills.
He told us whether _________ a picnic was still under discussion
Practising Chinese kung fu can not only _____ one’s strength, but also develop one’s character.
—May I open the window to let in some fresh air?—___________
John is very ____ ——if he promises to do something he’ll do it .
This printer is of good quality. If it _______ break down within the first year, we would repair it at our expense.