------------ Be careful! Don't break the bottles. Do you hear _______ I said, David?------------Yes, mum.
Stop _______ me to hurry up. I can only go so fast.
Certainly I posted your letter — I remember ______ it.
Please remember _______ the plants while I’m away.
Please excuse me _______ your letter by mistake.
After describing the planned improvements, she went on _______ how much they would cost.