IV/1. Invention(n)
2.Enjoyable(adj)
3.Generosity(n) 

4.Countless 

5.Unfortunately(adv)

6.Emigrated(v)

V/1.Can you show me the way to the nearest bank?
    2.Language learners learn words in different ways.
    3.Mom had to do everything without the help of modern equipment.
    4.Miss jackson said you should work harder on your spanish pronunciation.
VI/ 1.There used to be not longer tall tree in the park near my house

     2.The weather was fine enough for us to go camping.

     3.How long have you learnt English?
     4.Miss Linda told Tim to carry the bag for her.
Chúc bạn học tốt!