Verb to Be, A or An?

I _____ climbing a tree.

• am

• is

• are

Dad ______ a police officer.

• am

• is

• are

You _____ going home.

• am

• is

• are

Tim _____ a student.

• am

• is

• are

We _____ reading.

• am

• is

• are

Mary ____ sitting on a chair.

• am

• is

• are

We _____ going to play football.

• am

• is

• are

I ____ riding a bicycle.

• am

• is

• are

Anna ______ talking to the teacher.

• am

• is

• are

You _____ watching TV.

• am

• is

• are