Functions

What is the function of the following sentence?
'Close the door!' 

• suggestion
• order
• request

What is the function of the following sentence?
'If I were you, I would close that door.'

• order
• disagreeing
• advice

What is the function of the following sentence?
'Sorry, I forgot to close the door.'

• apology
• advice
• agreeing

What is the function of the following sentence?
'Why don't you close that door?' 

• suggestion
• order
• apology

What is the function of the following sentence?
'Could you please close that door?'

• request
• order
• agreeing

What is the function of sentence B?
A: 'It feels better with the door closed.'
B: 'I think so too'.

• disagreeing
• advice
• agreeing

What is the function of sentence B?
A: 'It feels better with the door closed.'
B: 'I really don't think so'.

• agreeing
• disagreeing
• request