Question

阅读短文，从方框中选择合适的词语，并用其适当形式补全短文。

but, take place, in the past, go to work, used to be

Over the past ten years, great changes    1    in our hometown.    2   , the houses in our hometown were very old,    3    now most of the people have moved into tall buildings. The water in the river     4    very dirty, but now the river is very clean, and we can swim in it. People here used to walk or ride bikes, but now they can take buses or drive their own cars    5     .

Answer 1

1. have taken place             2. In the past               3. but       4. used to be                 5. to go to work