问题标题:
Davidsends(twoemails)tohisfriendeveryweek.对括号里的部分进行提问-__________emails____David____tohisfriendeveryweek?
问题描述:

Davidsends(twoemails)tohisfriendeveryweek.对括号里的部分进行提问

-__________emails____David____tohisfriendeveryweek?

宋艳君回答:
  HowmanyemailsdoesDavidsendtohisfriendeveryweek?
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