not ,cut ,chould ,too ,trees ,we ,many ,down

改错为：When Mike was four,he could ride the bike.或者When Mike was four,he was able to ride the bike.
could(chould是打错了吗?)和be able to不能连用.
同义句转换：1.The flowers will die,if you don't water them.
2.Cleaning your room every day will be good for your health.
3.He decides to return to his hometown some day.
how和what的感叹句：
how+形容词+冠词+名词+系动词 How beautiful the bird is!
what+冠词+形容词+名词+代词+系动词 What a beautiful bird it is!

正确.

翻译吗？
课堂里是否应当禁用移动电话（手机）？ 你可以写 120 个以上的 词 。。。。
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若要回答，请参考下文：
Should cell phones be banned in school?
As schools across the country grapple with cell-phone policies, New York City's strict ban has everyone talking
YES
As a former New York City public-school teacher, I can tell you that cell phones don't belong in the classroom. A student with a cell phone is an uninterested student, one with a short attention span who cares more about socializing than education.
When I was teaching, all too often I turned around from writing something on the blackboard to find students text-messaging or otherwise playing with their phones. Come the end of the term, a handful of students would fail the class and far too many would drop out of school. The onus for failure should be placed on distractions in the classroom, specifically cell phones. Parents think of cell phones as a connection to their children in an emergency. But I wonder what the last situation was that genuinely called for an immediate phone call to a child. In most cases, contacting the hospital or the police would seem more urgent. And parents can always call the school's main office to reach their children.Cell phones are status symbols for teenagers because when their phone rings while the teacher is talking, everyone laughs. Because playing video games on their cell makes them look cool. Because text messaging their friend in the next room is more fun than learning about topic sentences. So is listening to the new Three 6 Mafia song they just downloaded onto their cell.And saying students can store their phones in the locker is a joke. If they have cell phones, they're going to bring them to class.—Jesse Scaccia
Former English teacher, Franklin D. Roosevelt High School, Brooklyn, N.Y.

NO
Schools make rules to facilitate a quality education in a respectful and safe environment. Cell phones are a distraction in classrooms and have no place there. I support rules banning their use—by students and staff—in the classroom.But cell phones should not be banned from students' possession entirely, because that is, in effect, not allowing students to have cell phones while traveling to and from school.My children's time before school and after should not be under the school's control. Making sure my children have cell phones and can contact me during those times is my right as a parent.It's not just about safety or reassurance. Yes, I want my kids to call each morning when they arrive at school and each afternoon when they leave, and there are so few pay phones anymore on which to do that. But my children's lives are also enriched by the freedom to travel to a variety of extracurricular activities or social engagements without an adult chaperone. That is only possible because an adult is just a phone call away. If my children are not allowed to keep their cell phones during the school day—off and in their backpacks or lockers—the school system is governing my parenting and my children's behavior during non-school time. The school has no such right. Besides, teachers should be teaching, not spending precious time tagging and bagging confiscated electronics.I trust my kids to make responsible and respectful choices, and I trust their teachers and administrators to do the same.—Elizabeth Lorris Ritter
Parent, Bronx High School of Science, New York

C.follow ; explain

At the age of 5, she could ride the bike.

假如你能回到过去
应该是could吧~可能~

B
注：A用于肯定式； C语序错
区别：
So +助动词/动词BE/ 情态动词等+主语”主要用来说明前面所说的情况也同样适用于后面的人或物,[意为“……也一样”].该结构中的助动词 do 根据前文的情况也可换成 is,am,are,was,were,
does,did,can,could 等.如：
He passed the exam,and so did I.
=He passed the exam,and I passed the exam,too.
“So +主语+助动词/动词BE/ 情态动词等”主要用于加强语气,其意为[“的确如此、确实如此”],表示后者赞同前者的话或意见,只是进一步强调并重复前句所述的内容.前后句的主语指的是同一个人或物.该结构中的助动词 do 根据前文的情况也可换成
is,am,are,was,were,does,did,can,could 等.如：
—He has done a good job.他干得不错.
—So he has.他的确干得不错.
注：如果前半句是否定,则用neither/nor + 助动词/动词BE/ 情态动词等+主语
加油!不明白再问!

你能把这句话翻译成汉语吗?
Chould you please translate this sentence into Chinese?