Vocab unit 3

It's a very handu solution: both clever and___

• conservative

• efficient

David's clothes are torn and filthy. He is living in such____

• Penury

• lavishness

Solar power is one of the most useful powers on earth because it is _____

• long-term

• Biological

• Renewable

My dad has been working since he arrived home. He is so_____in his work.

• absorbed

• Firm

• neat

We were puzzled throughout the lecture. The lesson is really____.

• out of the blue

• out of the question

• out of depth

It is really cold in here! can you please boost up the______

• central heating

• water purifier

Our parents wish for us to become_____. They wish to see us empowered.

• Handy

• obscure

• Self-reliant

In a difficult______ environment, it is hard to find______.

• labor intensive, bright eyed

• Ethical, Prototype

America's weapons are______ and powerful. No one can build weapons like them!

• gass-guzzling

• Sophisticated

• neat