从方框中选词并用其适当形式填空

describe; nobody; potato; reason; terrible

①What's your ____ for asking for so much money, dear?

② We know you had an unusual experience, but could you please ____ it more carefully?

③ —How's the food there in Europe during your vacation?

—It's really ____! They eat many things without cooking!

④ —Who helped you work out the problem?

—____! I made it myself after ten minutes' hard work.

⑤ —Do you like eating vegetables?

—Yes. I like ____ and tomatoes best.

如果草原适度放牧，牧草能不断生长而维持原状，牲畜则因此获得稳定的食物，可持续高产，但如果过度放牧就会破坏草场植被，甚至沙漠化．这一事实说明生态系统具有一定的____ 能力．草原上牧草与牲畜的关系是____ ．

下面是生活中常见的五种生物，请结合所学知识回答问题：