d. from the 1800s to 1960s 为正确选项。 解题思路:then in the early 1800s the world started to change...people didn’t h**e to explore much any more;by the 1960s most people could expect to live to be at least 60...
h**e got=h**e,got可以去掉,表示 有,i h**e(got)a book.我有一本书 h**e been表示去过(已经回来),通常与to连用,例如:i h**e been to hk 我去过hk(现在在家,说明回来了) h**e gone to表示去了没回来,例如:tom has gone to the nearest library,tom去了最近的图书馆还没回来
you want to check that?it depends on weather you can speak chinese..if you can, it's very easy, just call 10086 and follow the instruction.. believe me, you can do that..if you can't, it also not hard...
两者都是现在完成时,有差别.h**e been in 是说去到某方没走,一直待里;i h**e been in america for 3 years.我已经在美国呆了3.(我现在依然在美国.)h**e been to是说“去过”,现在不在那里了.但是它不是过去时,所以不能像二楼的那个例子用5 years ago.举个例子:i h**e been to america for 3 times.我去...