问题
单项选择题
The big man has always been eating on the go,（）he has got stomachache.
A.so
B.however
C.as
D.because
答案
参考答案：A
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The big man has always been eating on the go,（）he has got stomachache.
A.so
B.however
C.as
D.because
参考答案：A