Excuse me, Sir. But smoking is not allowed here.—Sorry, I didn’t see the sign. I’ll _______ my cigarette at once.

. –Mary, is this ______ umbrella?–No, it’s not mine. It is _______.

Tom, I heard that your mother went to Qindao last week. Could you tell me ________?

Some young people like reading novels on their mobile phones after turning off the light at night.—Don’t you think it is to their eyes?

Many ______ Chinese cultural relics, which have been lost over ______ last century, have started to return home.