“Shall we stop for lunch _____ shall we drive on?”“Let’s stop for lunch, but the driver can’t drink _____ drive.”
Had they known what was coming next, they ___________ second thoughts.
I don’t know how it ___________ that our car was bumped from behind.
—How do you like your trip to Hainan? —________,I enjoyed it very much,although the weather was hot sometimes.
-----Why didn’t you ring me up? ----- Sorry, I forgot your phone number. Otherwise, I _____ long before.
My chest _____ when I take a deep breath, doctor.