You must _____ a letter to your mother tomorrow.—Well, I will, Dad.

Yesterday Jim spent 7 hours in playing computer games; he even didn’t do his homework.—Don’t scold him___, he is a child.[ ]

He paid for a seat, when he _____ have entered free.[ ]

I was about to tell him the secret _____ someone patted me on the shoulder

Where are the visitors from?—_______from South Africa