Unit 1
Unit 2
Unit 3
Unit 4
Unit 5/6
100

This adjective describes clothes that are fashionable.

Attractive

100

Many national celebrations include?

Parades

100

The part of the tree that grows underground is the...

Root

100

A person who regularly watches your post.

A follower

100

A very tall building with many floors is called what?

A skyscraper
200

Before making an important decision, you should (fill in the blank) the situation carefully.

Think over

200

A large spill of petroleum into the sea is called what?

Oil spill

200

Which word means "showing consideration and politeness towards others"?

Respectful

200
This often happens after years of scientific progress.

Development

200
A group of wolves is called what?

A pack

300

What is the difference between a high season and low season?

High season is the busiest and most expensive time to travel; low season is quieter and cheaper.

300

What renewable energy source uses sunlight to produce electricity?

Solar powered energy

300

Why do some traditions have deep roots in society?

Because they are connected to history, beliefs, identity, or culture.

300

This adjective describes someone who cannot do something without help.

Helpless

300

To admire and respect someone greatly is to...

Look up to someone

400

A company promises to (fill in the blank) your order within 48 hrs. 

Deliver
400

A person who lives and works abroad for a long period of time is called what?

An expat

400

Governments may need to (fill in the blank) against climate change.

Take action

400

The illegal act of entering someone's account without permission.

Hack

400

An adjective meaning "extremely good".

Outstanding

500

You arrive at the airport three hours before your departure because you booked your Uber (fill in the blank)

In advance

500

During a festival, people may (fill in the blank) the crowd to celebrate together.

Join the crowd

500

Many environmental groups want to (fill in the blank) endangered species and restore natural habitats.

Protect wildlife

500
Many people think this happened, but historians are not completely sure. 

Widely believed

500
Complete:

If I had studied harder, I (fill in the blank) the exam.

Would have passed

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