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I can't send an e-mail. Would you please show me __?

A. what to do it       B. where to do         C. when to do       D. how to do it

I can’t send an e-mail, would you please show me ________ it?

A． where to do          B． when to do        C． what to do           D． how to do

I can’t send an e-mail Would you please show me __________it?

A．doing    B．to do            C．what to do             D．how to do

I can't send an e-mail. Would you please show me ________ it?

A. doing

B. to do

C. what to do

D. how to do

I can’t send an e-mail. Would you please show me _______ it?

A. what to do　　

　　B. how to do　　

C. where to do

D. when to do

I can't send an e-mail. Would you please show me ________ it?

[　　]

A. doing　　　　 　　　　　　  B.to do　　　　　　　　　　 　　   C.what to do　　　　   　　   D.how to do

A. doing　　　　　　　　　　    B.. to do

C. what to do　　　　　　　　　　    D. how to do