How to surf the Internet safely?

How to surf the Internet safely? 翻译Kate's learned how to surf . surf the He taught me how to surf同义句 how often does your uncle surf the net? The old lady ,not ______ how to surf the Internet ,decided to learn it from her grandsonA.know B.known C.knowing D.to know 单选!_____ great fun it is to surf the internet in our computer lessons!A.what B.how C.what a D.how a He wants to surf the Internet.对surf the Internet提问快,急用! Do you enjoy __on the Internet?A.surfing B.surf C.to surf D.surfed How much time do you spend____the Internet?A.surf B.surfing C.to surf D.surfed原因 下面句子中time分别是什么意思?I surf the Internet three (times) a month.How many (times) have you ever been to Beijing.What (time) is it now? 1.I'll ring you up as soon as I____.A.get to B.reach C.arrives at D.arrive2.____to ride a bike from your school to the park.A.How long did you spend B.How far did it takeC.How long did it takeyou D.How far did you spend3.He put his photos on the Inte Many people like to surf the internet.作文 she was seen__by her mother last weekenda surf the internet b surfing the internet c to surf the internet the boys are having great fun _______ in the wavesA surf B to surf C surfed D surfing surf the Internet的surf是什么意思 surf the internet是什么意思 英译汉:surf the lnteinet