将下列英语句子译成汉语，汉语句子译成英语。
小题1:Many accidents are caused by careless driving.
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小题2:If you compare her homework with his, you’ll find hers is much better.
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小题3:在苏州空气污染要比中国其他城市少。
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小题4:你爸爸穿红白相间的T恤衫，看上去真酷。
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小题5:我有时怀疑这本书是否值得一读。
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