Đáp án:

IV, 1A   2C   3A   4   D   5B

V, 1T   2T   3T   4T   5F

VI, 1=> The segway

     2=> Because it's too expensive and it's hard to park.

     3=> It's the monowheel

     4=> It's the Segway.

VII  1=> Human will use the sun as the biggest energy source for the future.

     2=> Mr. Tan will be working in a hospital this time next year.

    3 => My school will organise a festival next week.

    4 =>The students will be learning English at this time tomorrow.

VIII 

  1=> Solutions will be found to reduce pollution in our city.

  2=> Sources of energy will be used more effectively ...

  3 => The use of electicity will be minimized to save our electicity

  4=> More regulations will be made to reduce...

  5=> A great deal of energy will be offered next century by wind power 

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