【题目】It's sad that few people think about what they can do ________ others.

【题目】—Try to relax. It's normal to feel ________ before a big exam.

【题目】________ of Mr. Brown's son takes after him. They both look like their mother.

【题目】________ be late ________ school.

【题目】—Is Sam cleaning the room? —________. He's making the bed.

【题目】—Look！Whose house is that?

【题目】I hate people laugh at others when they are in trouble.

【题目】Our parents provided us ____ almost everything we need. We should care ____ when they are old.

【题目】----What would you like to get your friend as a birthday gift?

【题目】—How many hours do you sleep every night?