He doesn’t do his homework________. So he always makes some mistakes.
—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.