Unit 2

I (a)   give Mr. Lee my phone when he caught me texting in class.​

Hint: phrasal modals

• had to
• wasn't supposed to

Write the correct form of the words in parenthesis

I ____ (should / make) a left turn instead of a right turn. Now I'm lost.

Hint: past perfect tense

Why did Joe get the highest grade on the test?

Put the words in the correct order to make an answer

• He

• really hard

• must

• have

• studied

Write the correct form of the words in parenthesis

I ____ (need / pick up) a friend from the airport, but I forgot. Now he's waiting for me.

Hint: past tense

Is the modal expressing a degree of certainty or obligation / advice / opinion?

Some people are certain the boats and airplanes that have disappeared in the Bermuda Triangle must have vanished due to human error.

• Certainty

• Obligation / advice / opinion

Bob (a)   bring a dessert to the party, but he brought an appetizer instead.

Hint: phrasal modals

• was supposed to
• didn't need to

Choose the correct vocabulary word

If Grace doesn't pay her credit card bill again this month, she's going to ____ her debt problem.

• run into

• identify

• solve

• aggravate

Answer explanation

Aggravate: make a problem worse or more serious

Eve was worried that she (a)   pass her exam to graduate.

Hint: phrasal modals

• needed to
• didn't have to

Is the modal expressing a degree of certainty or obligation / advice / opinion?

The people who vanished should have planned their route more carefully to avoid entering the Bermuda Triangle. 

• Certainty

• Obligation / advice / opinion

Choose the correct vocabulary word

My brother is an amazing auto mechanic. He can just look at a car’s engine and ____ exactly what is wrong.

• deal with

• identify

• avoid

• solve