根据下列图示及叙述，完成下列各题。

  A      B      C      D      E

(41). It lives in Australia. It has very strong legs(腿). It is grey(灰色). It can jump high(跳高). It is very good at looking after her baby. A mother has a pouch in front. There, the babies are warm(暖和) and safe (安全). It is a _________.

(42). It is from Africa. It can run fifty kilometers(公里) an hour. It has a very long neck(脖子) and long legs. It can reach(够着) the leaves on a very tall tree. It is a ________.

(43). It lives on the Antarctica. It is always very cold(冷) there. It is black and white. It can walk on the ice and swim in the sea(海). It's a big bird, but it can't fly (飞). It eats fish. It has very short legs. It looks very lovely. Children like it a lot. It is a ______.

(44). It is also from Africa. It is black and white, too. It has a long tail(尾巴). It can run very fast. We can see it in zoos and pictures. It is a ________.

(45). It is very lovely. It is not from Africa. It is from China, it is white and black. It likes bamboos. There are not many of them in China now. Everyone loves it very much. It is a _______.

完形填空

　　When you have a post office box, the postman does not bring letters to you, but you have to go to the 1 and get your letters and parcels (包裹) from your box. The box is locked, and you have the key, so the letters are quite 2 .

　　One day, Mr Brown, the 3 of a school, wrote to the post office and asked for a post office for his school. He soon got an answer. It 4 , “We will give you a post box 5 one month.”

Two months later, Mr Brown wrote to the post office 6 and said, “Why haven't we got a post office box yet?”

　　Five months later, there was still 7 news. Mr Brown was 8 angry that he went to the office and asked why. The postman said, “We have written two letters to you and told you to get the 9 to your post box back, but you didn't 10 .” “Where are the letters?”“We sent them to your post box.”

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Cars are lots of fun, but they could also be dangerous. We have to be careful when we drive them or ride in them.

It's always a good idea to put on your seat belt when you're in a car. Why? Think about this example: You put an egg on a skateboard and give it a push. If the skateboard hits a stone, it will stop, but the egg won't. It will fly through the air, hit the ground and break.

Now, think what would happen if you tied the egg to the skateboard. When the skateboard hits a stone, the egg won't go flying; it will stay safely on the skateboard.

Volvo, a famous Swedish carmaker, was the first to use seat belts in 1849.

Air bags are also very important for car safety, because sometimes a seat belt isn't enough. If the car is going really fast and runs into something, seat belts could even hurt the people who wear them. Most new cars have air bags in front of and next to the seats. When a car hits something, its air bags will come out quickly in less than one second to keep the people inside safe.

1.The passage mainly tells us                  .

2.The writer gives the example of the egg to _.

3.Seat belts can make us safer because .

4.Air bags are important for cars because _.

5.Which of the following is TRUE according to this passage?