Why do plants grow in some places and not in others? Why does some land have so much growing on it, while other land has almost no plants growing on it at all? To grow, plants need several things. One is warmth. In very cold places almost nothing grows. Plants also need water. In very dry parts of the Earth only a few unusual plants can grow. That's why dry deserts everywhere are almost not covered by trees or grass.  Plants must also have a place in which to put down their roots and grow. They find it difficult to grow on hard land. The town is built on hard land. The plants here have only the soil found between the _ cracks of the stones to grow in. Another thing plants must have before they can grow is food.  What will happen if we try to make things grow on the sandy beach? A few plants, such as beach grass, will grow in sand, but most plants won't. Even if the weather is warm enough and we water the plants each day, many of them will die because the sand on this beach has almost no food for plants. The passage can most probably be found in a_book. A) science B) history C) travel D) math
A

Golden sunlight danced in the treetops, and children's laughter filled the park. The smell of popcorn played on the breeze, and life seemed good. It was one of the happiest Saturday mornings I had spent with my little daughter, Gigi. That is, until two strangers threw her into their car and sped away. It seemed like a bad dream. I could barely whisper when the police questioned me. For hours we waited,but there was no word on the whereabouts of the car. Tears would start to come. Then nothing. I was numb with fear. "Go home, Ma'am," the police officer said. "I'll have someone drive you. We'll also want to monitor your telephone. The kidnappers might call, and we'll want to keep track. Trust me, these guys can't get far. " After what had just happened, it was hard for me to trust anything. My friend Gloria came over that afternoon. "I heard about Gigi on the radio," she said. "Everyone is looking for the car. The interstates are all blocked." She took my hand. "Look here," Gloria said. " I want you to have this picture, and I want you to pray with me." It was a picture of a little girl sound asleep in her bed. Standing by the bed was a tall, blond angel. His hand was touching the girl's shoulder as he smiled down at her. My nerves were frazzled. "You know I don't believe in that kind of thing!" I snapped. "I'm too exhausted for any hocus-pocus right now, Gloria!I want my daughter home!" I started to shake, and then I began sobbing. Gloria placed the photo on our mantle and knelt down beside me. "Just pray with me," she said, holding my hand. I had no strength left, so we prayed and waited what seemed an eternity. Together, we waited by the phone until sunset. The phone never rang. Suddenly, the front door swung open. I looked up and screamed. There stood Gigi. "Gigi! Thank God!" I cried, throwing my arms around her, "Where did those men take you? How did you get home? Did the police find you?" "No Mommy!" said Gigi. "I was really scared because those men said they were taking me far away. We were going really... The main reason why the kidnappers could be arrested was that  _  . A) the police followed and caught them B) Gloria's best friend helped the police to find them C) an angel spotted them and took them to the police station D) they had an accident when a tall man tried to stop their car
D

After lunch,I walked back home. I was just to cross the street when I heard the sound of a coin dropping. It wasn't much but,as I turned, my eyes caught the heads of several other people turning too. A woman had dropped what appeared to be a dime. The tinkling sound of a coin dropping on pavement is an attention-getter.It Can be nothing more than a penny.Whatever the coin is,no one ignores the sound of it.It got me thinking about sounds again.We are surrounded by so many sounds that attract the most attention. People in New York City seldom turn to look when a fire engine,a police car or an ambulance comes screaming along the street.When I'm in New York,I'm a New Yorker.I don't turn either.Like the natives,I hardly hear a siren there. However,at home in my little town in Connecticut,it's different.The distant sound of a police car, all emergency vehicle or a fire siren brings me to my feet if I'm seated and brings me to the window if I'm in bed.It's the quietest sounds that have most effect on us.not the loudest.In the middle of the night, I can hear a dripping tap a hundred yards away thigh three closed doors.I've been hearing little creaking noises and sounds which my imaginnation turns into footsteps in the middle of the night for twenty-five years in our house.How come I never hear those sounds in the daytime? I'm quite clear in my mind what the good sounds are and what the bad sounds are,I've turned against whistling,for instance:I used to think of it as the mark of a happy worker but lately I've been associating the whistler with a nervous person making unconscious noises.The tapping,tapping,tapping of my typewriter as the keys hit the paper is a lovely sound to me.I often like the sound of what I write better than the looks of it. The author dislikes whistling because  _ A) he has got tired of it B) it reminds him of tense people C) he used to be happier D) he doesn't like workers

B