The _____ you study, the _____ you’ll be in it.

have you got my email I sent you a birthdaycard yesterday—Oh, really! I haven’t ＿＿＿my mailbox yet

Look at that little boy wandering about — perhaps he _____ his mother

Tian’anmen Square is one of ____________ squares in the world.

I have a word with you, mum —Oh, dear, if you______.