问题补充：
22. In order to the heart of his former sweetheart, the young man gave up smoking and alcohol, worked extra hard but all his effort waste.
A. win back; went to
B. get back; came to
C. bring back; began to
D. take back; left to
答案：
(答案→)A. win back; went to
B. get back; came to
C. bring back; began to
D. take back; left to
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