-I am sorry to step on your feet! -_________ . A. Good luck B. Don’t say that C. Never mind
—Tony, your room is really untidy. You should _________ your things to keep the room clean. —OK, Mum! I’ll do it at once.
We are ready to offer help _______ you _______ .
Please keep the secret to ________, children! Don’t let anybody else know it.
He arrived ________ Nanjing _________ the evening of July 8th.
Mr Smith together with his two children ________ early every morning.