what引导的成分叫主语从句,他所指代的内容是350年前美国森林所发生的事情,整个句子充当主语,但是后面什么也没有,所以这句话要使完整的话可以这样改动:what happened to the forests of the usa in the last 350 years made us aware of the importance of plants(350年前美国的森林所发生的事使我们意识到了...
V. Answer the questions:What has happened to the forests of the USA in the last 350 years? In 1620, about half the USA was covered by forests. In 1850, about a third was covered by forests. Today the forests have almost gone. But too many trees are still being cut down in the ...
What happened to the USA, where did it go?Lisa Gawlas
Discuss one major event the United States has experienced after World War II and describe and explain how it changed American society. What caused World War l and World War ll? What were some of the political effects of World War I? What happened to the South's economy during...
What has happened to the Cubans A.They set foot in Florida.B.They were drowned.C.They were flown to the U. S.D.They were sent back to Cuba. 点击查看答案手机看题 你可能感兴趣的试题 单项选择题 Which of the following is NOT listed as a terrorist group by the US A.The pro-Iranian ...
D. Answer the questions(根据短文内容,回答下列问题)(5分)What has happened to the forests of the USA in the last 350 years? In 1620, abou half the USA was covered by forest. In 1850, about a third was covered by forests.Today the forests have almost gone. But too many trees are ...
A. has happened to B. is happened to C. has happened at D. is happening 相关知识点: 试题来源: 解析 A 考查现在完成时的用法。句意:在过去的350年里,美国的森林发生了什么?过去发生并且已经完成的动作对现在造成影响或后果,过去某一时间开始并一直持续到现在的动作或状态。发生什么事了用介词to ...
If the U.S government's credit rating has been downgraded, investors would have a concern about its ability to repay government debt This would cause...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Ou...
a战争结束后, 他们发觉原来的价值观念不能再 After the war ended, they detect the original value idea not to be able again[translate] amg family has different food for breakfast every morning 镁家庭每天早晨食用另外食物早餐[translate] aThat's quite all right 那是相当顺利[translate] ...
A. has happened to 精英家教网>初中英语>题目详情 What ___ the forest of the USA in the last 350 years? A. has happened to B. is happened to C. has happened at D. is happening 试题答案 在线课程 答案:A 练习册系列答案 名师作业