问题
单项选择题
The students have been working hard on their lessons and their efforts（）success in the end.
A. rewarded
B. were rewarded
C. will reward
D. will be rewarded
答案
参考答案：D
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The students have been working hard on their lessons and their efforts（）success in the end.
A. rewarded
B. were rewarded
C. will reward
D. will be rewarded
参考答案：D