---________ do you improve your English ?---I improve it ________ practicing it more often.
-Who taught _______ Chinese, Jerry? -_____ classmates. They helped me a lot.
The old woman withorange hat is my grandmother.
- What did she ask you just now? - She asked me.
—The party is a great success. We've had a good time. —______!
3D printers are still _____ expensive for most of us ______ afford.