Ex4
1.A 2. B
3.B 4.D
Ex5
1. tick green forest
2. sharp claws
3. to make growling noises
4. to screamed for help
5. to run away in fear
6. a dark cave
7. to be fast asleep
8. to start afire
9. to pick fruit
10. to work on an experiment
Ex7
1.b
2.a
3.c
Ex8
1. already started
2. showed
3. had been traveled
4. had typed
5. saved
6. had looked
7. practiced
8.leaved
Ex9
have you ever been to a theatre?
Yes i have
when as that
two weeks ago
what was it like ?
it was entertaining
Ex10
must-have to
don't have to - mustin't are not allowed to - needn't
Ex11
you mustn't take photographic in the museum
you must buy a guidebook in the museum \ You must leave your bag at the door
You must touch the exhibits
Ex13
hippos are more big teeth than giraffes
giraffes are less dangerous than hippos
Hippos are fatter than Giraffes
Giraffes are more long neck than hippos
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