4. comfortable fully-equipped

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3)ex1 page 124
1.fun
2.futuristic
3. specious
4.comfortable
5.fully-equipped
6.old-fashioned
4)ex2 page 124
1. isn't exactly
2.not very
3. really
4.(extremely) pretty
5.extremely
6.very
7.not exactly
5)Ex1 p.128
1.obstacle
2.dynamic
3.Concept
4.reliable
5.Simple
6.innovative
7.revolutionary
8. original
9.reinvention
10. Sophisticated
Ex2 p.128
1- C -Concept
2-a - traditional
3-c- simple
4-c- invention
5-a-came across
6- a-challenge
7-b- innovation
8 - a - obstacle