word study
vocabulary
reading
grammar U14
grammar U15
100

The bus _________ on the high way and caused a traffic jam yesterday.

broke down
100

paper money

bill

100

Around 3,000 years ago, people decided that shells were a good form of money. But why? The answer is simple. Shells are beautiful, they're hard, and they don't break easily, so they last a long time.

good

100

I don't know how to paint. I wish to paint a picture for my mother.

If I knew how to paint, I would paint a picture for my mother.

I would paint a picture for my mother if I knew how to paint.

100

I smell / feel sick.

feel

200

Jimmy _______ the garbage last night.

took out

200

To exchange things without money

barter

200

To spend money electronically, we can use cell phones and plastic cards, such as credit and debit cards. Using one of these ways tells the bank to pay another person, store, or restaurant for goods or services.

marvelous

200

I am not a bird. I wish to fly freely in the sky.

If I were a bird, I would fly freely in the sky.

I would fly freely in the sky if I were a bird.

200

correct the mistake


The sandwiches tasted deliciously.

delicious

300
A thief _________ my house yesterday. 

broke into

300

to help; to encourage

promote

300

At last the world had its first paper currency. Paper is light and easy to carry. If you had paper money, you wouldn't need so many coins. Strangely enough, it took many more centuries for other countries around the world to start using paper money.

great

300

You always wake up late. You always miss the class. You wish to wake up earlier.

You wouldn't miss the class if you woke up earlier.

If you woke up earlier, you wouldn't miss the class.

300
Correct the mistake


The music smelled loud.

sounded

400

I ________ my jacket because it is cold.

put on

400

to appear; to become visible

emerge

400

What two types of cards do we use?

debit card and credit card

400

I am not you. My wish is to speak louder for you.

If I were you, I would speak louder.

I would speak louder if I were you.

400
easy 


The cake recipe looks _____. I bet I can make it _____.

easy / easily

500

Alex _________ a cookie to share with his girlfriend yesterday.

broke off

500

hard-working; wanting success

ambitious

500
What two things did people use as money long time ago?
shells and feathers
500

There was a water fight. You missed the water fight. You wish to be here earlier.

If I had been here earlier. I wouldn't have missed the water fight.

I wouldn't have missed the water fight if I had been here earlier.

500

careful

Peter is a _____ student. He does things _____.

careful / carefully

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