This machine is very easy ______. Anyone can learn to use it in a few minutes.
Who helped Mum wash the dishes yesterday? —Helen ______.
What does he want to _____ when he_____ up?—He wants to be a doctor.[ ]
Would you mind ______ the door? It’s cold outside.— OK. I’ll do it right now.
Li Na plays __________ tennis very well. She has become __________ first Asian woman toreach a Grand Slam(大满贯)final.