Grammar: What's...?; It's ...

1. What's your first name?

• It's Mark.

• They're Mark

• Its Mark

2. What's your last name?

• My first name? It's Mark.

• My last name? It's Brandon?

• My name? It's Mark Brandon.

3. What's your phone number?

• It's [e-mail]

• It's 666 585 777

• It's 963

4. What's your email address?

• It's 658965896

• It's [e-mail]

• It's 6934

• It's Brad

5. What's your teacher's name?

• It Anas.

• They're Anas.

• It's Anas

• Its Anas

6. What's your ID number?

• It 636969

• Its 776699

• It's 999777

• They're 699966