You may hear someone say, ‘It’s raining cats and dogs.’ We know it means it’s raining hard

You may hear someone say, ‘It’s raining cats and dogs.’ We know it means it’s raining hard. Here is how it es.
There are many large rats in a country. People need cats. But there are many mountains in the country. It’s hard for a plane to land (着陆）． So the cats e down by parachute（降落伞）．
In another country, the people need dogs to find people in the snow. Where can they get the dogs? You can guess. The dogs also e down by parachute.
These cats and dogs are helping the people. And the people often say it rains cats and dogs.
5. What does the sentence ‘It’s raining cats and dogs.’ mean?
A. We put the cats and the dogs in the sky.     B. It means ‘It’s raining hard’.
C. people like cats and dogs.                D. Cats and dogs are helping the people
6. Why do the cats e down by parachute?
A. Because it’s not safe (安全的).     B. Because there are many mountains in the country:
C. Because people need cats.        D. Because it’s quick to carry the cats.
7. From the article, we can know rats mean     .
A. 大象          B. 猴子           C. 老鼠           D. 熊猫B