who, whom, who's, or whose

​ (a)   dog is this?

• Whose
• Who
• Whom
• Who's

​ (a)   were you talking to?

• Whom
• Who
• Who's
• Whose

​ (a)   backpack was left in the classroom?

• Whose
• Who
• Whom
• Who's

​ (a)   going to the talent show tonight?

• Who's
• Who
• Whom
• Whose

Kayla is the one ​ (a)   took the question.

• who
• whom
• who's
• whose

​ (a)   responsible for this?!

• Who's
• Who
• Whom
• Whose

Send the invite to ​ (a)   ?

• whom
• Who
• Who's
• Whose

​ (a)   will help me clean up the classroom?

• Who
• Whom
• Who's
• Whose

​ (a)   might that be?

• Whom
• Who
• Who's
• Whose

​​ (a)   truck is parked over the line?

• Whose
• Who
• Whom
• Who's