问题
选择题
______ he was very tired, ______he didn’t stop working. [ ]
A. Though; /
B. Though; but
C. But; /
D. Because; /
答案
答案：A
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______ he was very tired, ______he didn’t stop working. [ ]
A. Though; /
B. Though; but
C. But; /
D. Because; /
答案：A