Once there was a man. He lived with monkeys. He played ____ the monkeys. He even like ____ (talk) to the monkeys.

    The man loved the monkeys and treated them like his own children. That's why he was ____ (call) Papa Monkey.

    Every day, Papa Monkey gave some bananas to his monkeys. He gave them in the morning and at night.

    One day, Papa Monkey almost ____ (run) out of bananas. He called his monkeys together. "I'm sorry," he said, "I can only give you three bananas in the morning ____ four bananas at night.

    When the monkeys heard this, they ____ (be) very unhappy. "Only three bananas in the morning?" cried the monkeys. "Give ____ (we) more bananas, please!"

    Papa Monkey had ____ idea. "I will give you four bananas in the morning and three at night. How about that?" he said. The monkeys yelled (喊叫) ____ (joyful), "Four bananas in the morning! That was much better!" They kissed Papa Monkey.

    ____ silly the monkey are! What is three plus four? What is four plus three? The monkeys got the same seven bananas a day!

若将铝、铁、氯、硅、氢、氧、锌、硫、磷、铜、氮、碳、银、钙等分成A和B两组，且A组中必须包括氧，应该如何分？试把分组结果用它们的元素符号表示出来：

A组：____；B组：____。

香兰素是重要的香料之一，它可由丁香酚经多步反应合成（如图）．有关如图两种化合物的说法正确的是（　　）

你学习累了刚打开电视，想休息一会，这时妈妈回来了，她以为你只想着玩不想学习，就劈头盖脸训了你一顿，你感到很委屈。