Fill in the blanks: _________________, I couldn't hear you

Look at the image. Someone helped you when your books fell! What would you say?

Look at the image. You forgot to do your homework! What would you say?

Look at the image. You ask someone for the way in a mall! What would you say?

Look at the image. Imagine you are really thirsty and you want water! What would you say?

Look at the image. Imagine you said something bad to your friend. What would you say?

Complete:

Please, thank you and pardon me are such _______ words to say!

What's the meaning of twice?

Is 'Excuse me", "Good morning", "Hello" and "How are you?" also nice words to say?

Fill in the blanks: Can you ___________ help me pick up these books? I'm actually running late for work.