3.
1) can't you
2) must
3) would
4) needn't
5) could
6) should
7) can't
8) couldn't
A Safari Adventure
1) elder/ older
2) most beautiful
3) twice
4) those
5) could
6) stopped
7) something
8) froze
9) was driving
10) the other (не уверена)
Pens
1) widely
2) disposable
3) messy
4) available
5) historical
6) Egyptian
7) appearance
8) inventor
9) invention
10) production