A) had to
b) couldn't
c) had to
d) didn't have to
e) could
f) couldn't
g) had to
h) couldn't
1. 1
2. 3
3. 2
4. 4
5. 3
6. 1
7. 1
8. 2
9. 2
10. 3
11. 2
11. 2
13. 1
14. 4
15. 1
Every
country has some famous people whose names are known all over the
world. (<span>are known - </span><span>passive voice)
</span>They are remembered for the things they did for mankind. (are remembered - <span>passive voice</span>)
Their
books are read,their theories are discussed,their discoveries are
admired. (are readare discussedare
admired - passive voice)