Swimming is very popular in summer. People like swimming in summer because water makes them        cool. If you like swimming but swim in a       place, it may not be safe. These years, more than ten people         while they were enjoying themselves in the water and          of them were students. But some people are     not careful. They often think they swim so        that nothing can happen to them in water. Summer is here again. If you go swimming in summer, don’t forget        better swimmers have died in water. They died because they were not careful, not because they      swim. So don’t get into water when you are alone. 24 there is a “No Swimming” sign, don’t get into water,      . If you remember these, swimming will be safer.

A．felt B．to feel C．feeling D．feel

A．difficult B．wrong C．right D．small

A．have died B．die C．died D．will die

A．much B．more C．lot D．most

A．still B．already C．yet D．even

A．well B．often C．fast D．hard

A．what B．who C．which D．that

A．needn’t B．wouldn’t C．couldn’t D．mustn’t

A．Because B．If C．Whether D．Though

A．also B．nor C．either D．Too