用所给词的适当形式填空。
For many people, life is a lot {#blank#}1{#/blank#}
(easy) today. Medicine and diet are improving, and people are getting {#blank#}2{#/blank#}
(healthy) and living {#blank#}3{#/blank#}(long). But communication is changing {#blank#}4{#/blank#}
(fast) of all. Today, with the Internet, people can communicate {#blank#}5{#/blank#}(easily)
than ever before with friends all over the world.
Not all the changes are {#blank#}6{#/blank#}(good) ones. More
people drive cars instead of riding bikes, so they are not as {#blank#}7{#/blank#}(fit) as they
were. Increasing traffic makes the roads {#blank#}8{#/blank#}(crowded) than ever,
and it also makes pollution {#blank#}9{#/blank#}(bad). We must all work harder to reduce
pollution.
