May I smoke here?—If you _______, choose a seat in the smoking section.

The wire was found broken. And ______, there happenedto be no one getting near.

Sarah always makes her son________ his hands before eating.

She is a quiet girl at school，but sometimes she _____ be very naughty

Mr Black, what about my application?— Oh, I regret________you that it hasn’t been successful.[ ]