Verb to be - singular

What is the correct contraction for "You are"?

• Yo´re

• You´re

• Your´e

• Yo´ure

I _____ a good friend.

• is

• are

• am

Susan _____ my best friend.

• am

• are

• is

Replace the subject with the correct subject pronoun:

Michael is a doctor.

• It

• He

• I

_____ __ a good girl.

• Helen is

• Tom is

• The dog is

It´s a very good day!

• Its

• It is