Chapter 5 A
Chapter 5 B
Chapter 6 A
Chapter 6 B
100
To need something.

require (v)

100
To give someone permission to do something. 

allow (v)

100

I am _________; I have everything I want and/or need in life. 

satisfied (adj)

100

Many cars today waste a lot of fuel, but the next ___________________ of cars will use less fuel. 

generation (n)

200

A substance such as coal, gas, or oil that can be burned to produce heat or energy. 

fuel (n)

200

Using more of something than is needed

wasteful (adj)

200

I lost my pen; do you have a(n) ___________________ I can borrow? 


extra (adj) 

200

The bus driver told the ___________________ to sit down while bus was moving. 

passengers (n)

300

To become twice as large, or twice as much. 

double (v)

300

People who buy things from a store or company. 

customer (n)


300

Exercising can ___________________ your health; it helps you lose weight and live longer. 

benefit (v)

300

Carbon dioxide is a gas that is ___________________ carbon and oxygen. 

made up of (phr v)

400

The act of bringing something (e.g. a letter or package) to a particular place or person. 

delivery (n) 

400

The land, water, and air in which people, animals, and plants live. 

environment (n) 

400

She made a cake in the ___________________ of the Batman symbol for her son's birthday party. 

shape (n)

400

My flight was late, and my luggage was lost. I'm going to ___________________ to the airline company. 

complain (v)

500

To ask for a particular amount or money for a service or something you are selling. 

charge (v) 

500

Things such as wood, plastic, paper, etc that are used for making or doing something. 

materials (n)

500

The ___________________ seats in the airplane cost $800. If you want a first-class seats, you will have to pay $1,200 extra. 

regular (adj) 

500

I usually pack only one small bag when I travel. I don't like to carry a lot of ___________________.

luggage (n)