问题
选择题
Mr Smith________his living by teaching ten years ago and he________greatly from his work. [ ]
A. earned; earned
B. earned; gained
C. gained; gained
D. gained; earned
答案
答案：B
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Mr Smith________his living by teaching ten years ago and he________greatly from his work. [ ]
A. earned; earned
B. earned; gained
C. gained; gained
D. gained; earned
答案：B