That children ______meet with setbacks is a matter of necessity as they_____, so parents don’t worry about that.

If you _____ leave early on weekdays, do it quietly. The other classmates are also dying to have an early leave.

—Must I buy lunch at school?—No, you needn’t. You __________ bring your own lunch if you want to.

Looking after very young children _____ be very annoying sometimes, but you’ll get used to it after a while.

—Where are Lucy and Lily?—Oh , the two girls must _______ a game in the garden now.