When you take a plane, you_______ obey the rule to turn off your cell phone.
——Did you go to Jack’s birthday party?——No, I _________.
——Must we finish the exercise today?——No, you________.
Your pocket money can be used to _____ charity, you used to _______ a lot on snacks.
The disabled people feel grateful _______ you ________ your help.
The old man should be treated with .