B...
主语从句...
not knowing them
+
can result
+
in great emabrassment
the rules of gift giving in USA vary a lot,and___them can result in great embrassment
the rules of gift giving in USA vary a lot,and___them can result in great embrassment
A.don't know B.not knowing
选哪个,并且说一下为什么
A.don't know B.not knowing
选哪个,并且说一下为什么
其他人气：781 ℃时间：2019-10-17 12:04:08
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