Lin looked at _______ passengers for help.

　　The tiger is the largest wild cat in the world. The big cat weighs about 363 kilograms and is about two metres long.

　　Tigers wait until it is dark, then they go out to find their food. When a tiger sees an animal, it moves very quietly, then jumps on the animal to kill it. Sometimes it can take several days for a tiger to finish eating its kill. The tiger eats until it's had enough, then it covers the dead animal with leaves. Later, when the tiger is hungry again, it comes back to eat some more.

　　Tigers are different from others in the cat family: they like water, and they often jump into rivers to swim.

　　Some tigers live in very cold places—in parts of North Korea, eastern Russia, and northeast China. Other tigers live in warmer places—in India and parts of Southeast Asia.

　　All tigers are in danger. People killed them to use their skins for clothes, and their bodies for medicine. In addition, there is also less and less land for tigers to live on. But now people know that tigers are in danger and have made plans to protect them.

(1) How weighty is a big tiger?

[　　]

(2) When do tigers go out for their food?

[　　]

(3) Can tigers swim?

[　　]

(4) Which country can't you see the wild tigers in?

[　　]

(5) What do people kill tigers for?

[　　]

A．Eat their meat.

B．Use their skin for clothes.

C．Drink their blood.