1.In the past ten years,Yangzhou has changed a lot.
Great changes have taken place in Yangzhou.
The past ten years witnessed Yangzhou's great changes.
2.1)My parents married 40 years ago.
2)It was 40 years ago that my parents got married.
3)Forty years has passed after my parents got married.
4)My parents have been together for 40 years.
3.在美国,汽车是人们生活中很重要的一部分.
汽车是美国成为了一个车轮上的国家.
4.don't need much money
5.serve(v.)service(n.)
completely
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