-___you___the e-mail to your friend?-not yet.l'm busy these days.(did;send,will;send,have;sent)

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-___you___the e-mail to your friend?-not yet.l'm busy these days.(did;send,will;send,have;sent)

-___you___the e-mail to your friend?-not yet.l'm busy these days.(did;send,will;send,have;sent)
-___you___the e-mail to your friend?-not yet.l'm busy these days.(did;send,will;send,have;sent)

-___you___the e-mail to your friend?-not yet.l'm busy these days.(did;send,will;send,have;sent)
did;send