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Vocabulary 1
Vocabulary 2
Grammar -ed or -ing
Grammar 2
Unit 4
100

This problem isn't difficult. I know there is a ______ solution to it.

simple

100

John's painting was so good that he won a prize for his ______.

achievement

100

The end of the movie was very _______ (surprise).

surprising

100

I __________ (read) last night when my Mom called.

was reading

100

I ______ tea instead of coffee.

prefer

200

Elon Musk is a _______ inventor. He invented the electric car, Starlink, and the Hyperloop.

remarkable, amazing

200

There are five main _______ to this presentation so please listen.

points

200

I thought the book was ______ (bore) because it didn't have any action.

boring

200
When Tim was in grad school, he ______ (travel) from Pittsburgh to Morgantown every weekend.

was travelling

200

The jungle is very hot and _____. I don't like it because it get wet.

humid

300

My friend is in a very bad ______. He doesn't have any money and he lost his job.

situation

300

English is a very ______ language. There are so many rules and different ways to say things.

complicated

300

I feel very _____ (tire) after studying all night.

tired

300

You ______ (drive) to Memphis last weekend when I saw you.

were driving

300

When I graduate, I will ______ an engineer.

become

400

The university has an interesting _____. There are parks on top of the roof and a running track inside the building.

design

400

Alex is a young ______. He started his first business when he was 17 years old.

entrepreneur

400

I wasn't ______ (surprise) that Jordan didn't come. He said he was ______ (tire) from working all day.

surprised, tired

400

I was sleeping when you _____ (send) me a text.

sent
400

We need to use _____ to power our homes.

energy

500

Nikola Tesla created many different ______ with lots of different ______. He created AC power current and changed electricity and made it possible to have electricity in homes.

inventions, uses

500

After John ______ from the military, he had great ______ as the owner of a cafe. His cafe became the most popular one in New York.

retired, success

500

I thought the lecture wasn't very ______ (confuse) because the teacher was very ______ (excite) to listen to.

confusing, exciting

500
They ______ (talk) about politics when I ______ (arrive) to the cafe.

were talking, arrived

500

We need to ______ global warming. Don't ________ the rainforest!

prevent, cut down