Not only________to turn off the lights in the kitchen,but we also failed to lock the front door.
Try to put the candidate ____ by being friendly and informal.
—Why can your neighbor know so much about London?—He ____ have been there before.
The new teacher made a good ____ on the students by her rich knowledge and humorous talk.
My parents live in a small village. They always keep candles in the house ____ there is a power out.
—What do you think of his opinion?—Nobody has given me _____ piece of advice.