Each of the following sentence has one mistake.Identify and correct the the mistakes in four underlines

Question IV:Each of the following sentence has one mistake.Identify and correct the the mistakes in four underlines(10p)

            1 . From at nine in the morning until four in the afternoon Mr. Tuan works  in the fields with his father.

            2.There is fewer work in the evening than there is in the morning.

            3.My dad always has a three-weeks vacation.

            4.What is Hoa unhappy? - Because She misses her family very much.

            5.The doctor says you should spend a little time to play video games .

     6.The public library in the city has thousand of good books.

     7.What does the new student like ?   -oh, she is tall and beautiful.

     8.Ba is in the class 7A and he enjoys the school very much

     9.My father always has a lot of houseworks to do

   10.There is a ten-floors building in front of my house