space travel

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• had better do sth可以默认为一般过去式吗例如You had better take a map with you when travel so that you wouldn't get lost.
• 作文要求如下：写一篇关于神舟六号升天的作文,要表现出全国人民的兴奋之情,要用上以下词语：send up into space,successful,be wild with joy（欣喜若狂）,be proud of,set a good example（树立了好榜样）,learn from,be the pride of,make a contribution to,study hard ,do exercise,healthy,in the future,grow up .要求是在70——80词左右~十万火急!
• The time is approaching _______ humans on the earth will benefit from the food raised in space.选什么呢?A.when B.that C.why D.where
• The time is drawing near ____the food rasied in space will directly benefit humans.The time is drawing near ____the food rasied in space will directly benefit humans.Awhere Bwhen Cwhether Dwhy
• 英语选择题13题1.it is often less expensive to buy goods _____a.in huge quantities b.a lot c.in quality d.ad most2.he rushed off,even _____ to take his overcoat.a.forgets b.forgetting c.forgotten d.having forgotten3.the Hubble telescope _____ into space in 1990 was faulty from the start.a.launching b.launched c.to launch d.having launched4.the forest fire _____ put out earlier.But in fact it took the firemen three months to put it out.a.needn't have been b.o
• 一片英语科技短文的选择here have been many great inventions, things that changed the way we live in. The first great invention was one that is still very important today一the wheel. This made it easier to carry heavy things and to travel long distances. For hundreds of years after that there were few inventions that had as much effect as the wheel. Then in the early 1800's the world started to change. There was little unknown land left in the world. People did not
• The cheap way to travel is by taxi The cheaper way to travel is by bus合并成一句话
• Let's travel to shanghai by taxi（一般疑问句）
• It was expensive to travel by taxi.(改为一般疑问句,并作肯定回答）,,expensive to travel by taxi?Yes,,.
• lucy's holiday plan 50字就可以了,可以跟据这个写：you want to write a letter to Kitty about your holiday plan for the spring festivalWho is going to travel to garden city with you?When are you going to visit?How long are you going to stay?How are you going to travel to garden city?Which place would you like to visit?
• 在半径5cm的圆中有一等腰三角形,等腰三角形边长8cm,求等腰三角形的腰长
• 如果关于x的方程1+（x/2-x）=2m/x²-4的解也是不等式组1-x/2＞x-2和2（x-3）≤x-8的一个解,求m的取值