choose the correct option
choose the correct option
a or an
a or an
100

This is my mother's umbrella.

OR

This is my mothers' umbrella.

This is my mother's umbrella.

100

Do you have the phone number of Helen?
OR
Do you have Helen's phone number?

Do you have Helen's phone number?

100

A mouse is ..... animal.

A mouse is an animal.

100

What's your job?  I'm .... teacher.

What's your job?  I'm teacher.

200

The building's roof.
OR
The roof of that building.

The roof of that building.

200

What is the name of this restaurant?
OR
What is this restaurant's name?

What is the name of this restaurant?

200

I'm going to buy ... banana and .... apple.

I'm going to buy banana and an apple.

200

I live in ... apartment.

I live in an apartment.

300

That is my parents' car.

OR

That is my parent's car.

That is my parents' car

300

When is your sister's birthday?
OR
When is the birthday of your sister?

When is your sister's birthday?

300

I work at ... university. 

I work at a university

300

Soccer is ... sport.

Soccer is a sport

400

Beijing is the capital of China.
OR
Beijing is China's capital.

Beijing is the capital of China.

400
Write your name at the top of the page.

OR
Write your name at the page's top.

Write your name at the top of the page.

400

Can you wait for .... hour?

Can you wait for an hour?
400

Do you want ... ice cream or ... apple?
I would like ... coffee.

Do you want an ice cream or an apple?
I would like a coffee.