—He is suffering from __________ in his back, but he is still working. —Maybe he knows no __________, no gains.
Mike has dreamed about taking a bike trip for a long time, so he _____ a new bicycle this afternoon.
After months of hard work, the building was completed ahead of ______.
John’s classmates offered him their congratulations ______ his successful performance in the school concert.
It was Paul’s low test scores that ______ his chances of getting into a good school.
---- Have you ever been to Chongqing? ----- No. It is the first time that I ______ this beautiful city.