前一个是完成时态.后一个是过去时态.两个句子的意思不一样.
前一个表示某事已经完成的状态.
后一个表示过去发生过某事.
这两句的意思分别是
我们已经提高很多了.
我们以前提高了很多.
句子中加have是为什么比如说 为什么要说 we have improved a lot 而不说 we improved
5个回答
相关问题
-
1,We will have a summer course ______ (improve ) our English
-
We have applied to the council for a home improvement grant.
-
and we also have to be quiet in the library为什么不说and we have
-
we look different .为 什 么 look 不 加 而 we have different looks.
-
为什么可以说we don't have no plan 这句子对吗?
-
英语题 We have enough money to improve the webstie 啥意思
-
怎么选?为什么?18.________ the weather improves,we will suffer a hu
-
We should improve our Enghlish to____foreigners.选什么,为什么
-
I hope her health will have improved by the time we__ back n
-
Now my English has improved a lot and i have_____(少）difficul