问题描述：
英语补充句子,完成对话
A:How to send an E-mail to my mum?
B:First,you have to_______ ________your computer.
Then you have to_______ _______ the E-mail icon.
You have to use the_______.The click on"_______".The
message will go to mum's computer.
A:How to send an E-mail to my mum?
B:First,you have to_______ ________your computer.
Then you have to_______ _______ the E-mail icon.
You have to use the_______.The click on"_______".The
message will go to mum's computer.
问题解答：
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