问题
选择题
.
The poor woman with her two children _____ in a street corner.
A．was seen beg
B．were seen beg
C．were seen begging
D．was seen begging
答案
答案：D
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.
The poor woman with her two children _____ in a street corner.
A．was seen beg
B．were seen beg
C．were seen begging
D．was seen begging
答案：D