10. (10分)阅读短文,判断下列句子正误。
Many years ago, there were no tall buildings in our city. There were some small houses. Only a few people lived here. They were farmers and fishermen. The air was clean. Now there are lots of tall buildings. Toc many people live here. They do many different jobs. The traffic is busy and noisy.
(1) There were some small houses here many years ago.
(2) The air wasn't clean then.
(3) Now people do many different jobs in the city.
(4) The traffic is busy and noisy.
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