Each ò the following sentences há a mistake in it.Underline the mistake and correct it 
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LÝ THUYẾT
5. Visitors were surprised that find dramatic changes in the country within a very short time.
6. Passers-by are delighted to the new underpass is being built.
7. I used to having a very good time with my grandparents when I was a child.
8. They are
getting used to walking to school in two months.
9. I wish I can go to see all the wonders which have been recognised by UNESCO.
10. They wished that time will be turned back so that they could go kite-flying with other kids.
11. He suggested to go to Phong Nha Cave since it's a famous natural wonder of Viet Nam.
12. It was reported that the city had invested more on the preservation of its wonders.
13. It is annoying that many of the village's customs have replaced with new ones.
14. The doctor suggested that he should drink more water, and took a lot of rest.
15. The environmentalist suggest planting more trees to improve the city's landscape and the
environment as well.
16. I am confident that life in the country has improved significant in the last five years.
UNIT 6
ENGLISH
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