How long has alison been skating?How long has alison been skating?She's been skating for five hours.How long did sam skate?he skated for four hours.我要解释的是那四句 因为本人英语差 所以请你们告诉哈我 回答了还有加分

问题描述:

How long has alison been skating?
How long has alison been skating?
She's been skating for five hours.
How long did sam skate?
he skated for four hours.
我要解释的是那四句 因为本人英语差 所以请你们告诉哈我 回答了还有加分

Alison已经溜冰多久了?(现在还在溜)
已经溜了五个小时了。
Sam共溜了多久的冰?
四个小时。(现在不在溜)

Alison 溜冰溜多久了?(现在完成时,目前还在溜)
她已经溜五个小时了。
Sam 溜了多久?(一般过去时,已经结束)
他溜了四个小时。

Alison 溜冰溜多久了
她已经溜了5个小时了.(现在进行时,Alison 现在还在溜)
Sam 溜冰溜多久了?
他溜了4个小时.(一般过去时,sam现在已经没有溜了.)