CNF2 UNIT 4 - Lesson 2

My parents are on vacation. They ______ a great time.

• have
• has
• is
• are

Answer explanation

Use 'have' with the plural pronoun 'they'.

"______ your little sister?" "She's five years old."

• How old is
• How old are
• How is she
• What old is

Answer explanation

Use 'How old is' when asking about the age of a single person.

The number that comes after ninety-nine is ______.

• one hundred
• ninety-ten
• one hundred one
• ten-ten

Answer explanation

One hundred' is the number 100, which follows 99.

My best friend ______ a new puppy.

• has
• have
• is
• are

Answer explanation

Use 'has' with a singular noun phrase like 'my best friend'.

Can you write the number 'eighty-four' in digits?

• 84
• 804
• 80-4
• 2025-04-18 00:00:00

Answer explanation

Eighty-four' is written as the number 84.

I ______ a question for the teacher.

• have
• has
• am
• is

Answer explanation

Use 'have' with the pronoun 'I'.

"______ your cousins?" "They're ten and twelve."

• How old are
• How old is
• How are
• What old are

Answer explanation

Use 'How old are' to ask about the age of more than one person ('your cousins').

My grandfather is 90 years old. He is ______.

• ninety
• ninety-zero
• nineteen
• nine-zero

Answer explanation

The word for the number 90 is 'ninety'.

The company ______ many employees from all over the world.

• has
• have
• is
• are

Answer explanation

A single company is a singular noun, so you use 'has'.

Your son is twenty-three. How do you write that number?

• 23
• 203
• 2025-03-20 00:00:00
• 2025-03-02 00:00:00

Answer explanation

Twenty-three' is written as the number 23.