Swimming is very popular in the world. Most people like swimming in summer, even in the other three seasons. Water makes people feel cool and swimming makes people keep healthy.
If you swim in a wrong place, it may not be safe. A lot of people died when they were enjoying themselves in the water, and most of them were students. Now some people are not careful enough in swimming. They often think they can swim so well that nothing will happen to them in water. If you go swimming in summer, don’t forget that a lot of good swimmers have died in water. They died not because they couldn’t swim, but because of their carelessness (粗心). Don’t get into water when you are alone. If there is a “No Swimming” sign（标记）, don’t get into water. If you remember these, swimming will be safe and enjoyable (舒服的).
根据短文内容，选出能完成所给句子的最佳答案。
____ like swimming in summer.

A．Few people

B．Most people

C．Only students

D．Only swimmers

Swimming can make people keep ____ .

A．clean

B．fat

C．healthy

D．thin

It’s ____ to swim in a wrong place.

A．wonderful

B．interesting

C．not safe

D．not careful

Some swimmers died in water because they are ____ .

A．students

B．children

C．not strong

D．too careless

If you go swimming, you shouldn’t ____ when you are alone.

A．get into water

B．die in water

C．swim too long

D．swim too badly