How can we save water?---- We can save water_____ fixing a dripping tap.A. to B. with C. by
Amy makes fewer mistakes than Frank. She does her homework ____.
—Remember ____ off the lights when you leave the room.—OK. I will.
—Which kind of food smells ____ or tastes____?—Sorry, I don’t know.
—Do you think the students need to have lunch at school?—____. It’s good for them to save time.
—Will you please ____ so much noise, Dongdong?—Sorry. I won’t.