问题
选择题
______ he was tired, ______ he didn't stop to have a rest. [ ]
A. Although…but
B. Because…so
C. Although…/
D. Because…/
答案
答案：C
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______ he was tired, ______ he didn't stop to have a rest. [ ]
A. Although…but
B. Because…so
C. Although…/
D. Because…/
答案：C