_______ exercising, ________ you'll be healthier.
---Who _______ the book _______? --- It was written by Lu Xun.
--How much did you_______ for the new ipad? --It _______ me 5000 yuan.
–Do you mind my ______ here?--___________. Smoking is not allowed here.
.—Why not _______us and have a good time at the party? ---I would love to. ________ I have a lot of homework to do.
—The old man is ill. He ________ to the hospital at once. --Don’t worry. A doctor _________to come already.