They have been here once.把been换成came怎么样
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They have been here once.把been换成came怎么样
应该是come,
come的过去分词是come,不是came
这样改过也可以
只是强调的不同
been强调的是他们在这里的状态
come强调他们过来的动作
come的过去分词是come,不是came
这样改过也可以
只是强调的不同
been强调的是他们在这里的状态
come强调他们过来的动作
They have been here once.把been换成came怎么样
They have been to Beijing only once.
It's about three years since they_here.是填came还是have been?
they have been here since 2000
The work has been finished since they came here
They have been attractions to tourist .能不能换成They have been a
they have been here since 1988,对1988进行提问,()()have they been
1.They have been here since 2000.___ ___
They must have been here the day before yesterday,----------
Where have they been?
He came here a year _______,and I have been here _______ two
they have been to the summer palace only once(only once划线提问)