【正文】 how to use the site safely and educate them 61 who may be predators and how to 62 key to 63 safe on the Internet is to make sure that your profile(個人資料)is 64 way is to change the privacy setting on your profile to “private”, which protects your information 65 only the people on your friend list can view this is 66 , it is not can find ways to view your profile if they really want to, 67 through backing in(黑客入侵)or figuring out their way onto your friend , you should never post too much personal people actually post their home and school addresses, date to birth, and so on, often 69 predators know exactly where they will by and 70The most information that is safe is your first name and more is a predator into your big problem is photos.[ suggest 72 skipping photos and never posting a photo of a friend online without his or her 73 Most important, never, 74 any circumstances, agree to a reallife meeting with anyone you meet online, 75 how well you think you know this are no guarantees that they have told the , which down intoD, turn on D, since difficuIt to matter that matter if you?考查祈使句的反意疑問句。當你讀完那本書的時候，不要忘了把它放回原處，好吧? be?？疾樘摂M語氣在賓語從句中應用，demand引導的賓語從句需要用should+動詞原形。工廠的工人要求他們的工資應該提高20%。 be seen。固定用法It remainsto be seen尚待分曉。還不知道吉姆是否適合參加決賽。 of。三個人否定用none。我邀請了Joe、Linda和Tom，但是他們全都不來。固定用法one?another一個另一個。在過去的20年中，網絡已經幫助我們的世界用一種或另一種更好的方式發(fā)生了改變。 spoken。這種語言在被非常少的人們使用的情況下，如何、為何存活了一千多年的問題很難解釋。幾乎半數(shù)的25歲以上的美國人參加了某種形式的繼續(xù)教育。Keep an eye on對某事密切注意。很多父母覺得，出于對犯罪和學校暴力的擔憂，他們需要密切注意他們的孩子。句子中已有謂語動詞increased，因此，spend應改為非謂語形式。而時間與主語time的關系是被動關系，因此采用過去分詞形式。對于已婚母親來說，2009年花在孩子身上的時間。越來越多的證據(jù)證明，越來越多的年輕人在政治活動積極參與。There 56 a king who had twelve beautiful 57 in twelve beds all in one room and when they went to bed, the 58 were shut and locked , every morning 60 shoes were found to be quite worn through as if they had been danced in all could 61 how it happened, or 62 the princesses had the king made it 63 to all that if any person could discover the 64 and find out where it was that the princesses danced in the 65 , he would have the 66 he liked best to take as his wife, and would be king 67 his whoever tried and did not succeed, after three days and nights, would be 68 to prince from a nearby country soon was well entertained, and in the evening was taken to the chamber(大房間)next 69 the one where the princesses lay in their twelve he was to sit and 71 where they went to dance。and, in order 72 nothing could happen without him hearing it, the door of his 73 was left the prince soon went to sleep。and when he 74 in the morning he found that the princesses had all been dancing, 75 the soles of their shoes were full of holes out out out ( 。how與what都可以引導感嘆句，how修飾形容詞和副詞，what才可以跟名詞。 his honor改成in whose honor。這里是一個定語從句，限定前面的主語，而whose可以實現(xiàn)這一功能。因為本句缺少賓語，所以用what引導的一個定語從句來袁示。 make改成having made，這一句是說“他之前已經做過多次努力??”。In the town提前，句子倒裝，句子主語many old people需要跟復數(shù)的謂語動詞。 play改成playing。enjoy 。 was改成was she。因為在So?that?句型中，如果So引導的是一個完整的句子，主謂需要倒裝。修飾need這個名詞應該用形容詞，而increasingly是副詞。more和比較級不可同時用，比較級中多音節(jié)詞前才需加more。本句有明顯的過去時標志性短語ten years ago，應用一般過去時，故直接用died即可。