单选题
The child hid himself behind his mother's skirt, ______ he was afraid of the dog.
A、
for
B、
and
C、
but
D、
or
【正确答案】
A
【答案解析】
[考点] for因为
[解析] 因为前后句存在因果关系，所以只能选连词for，故答案为A。
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