作业帮they have been gathering this year's crop.they have been___1 assembling it 2 picking it up 3 collecting it 4 bringing it in请问选择哪一个,及分别说出为什么对与错
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they have been gathering this year's crop.they have been___1 assembling it 2 picking it up 3 collecting it 4 bringing it in请问选择哪一个,及分别说出为什么对与错
they have been gathering this year's crop.they have been___
1 assembling it 2 picking it up 3 collecting it 4 bringing it in
请问选择哪一个,及分别说出为什么对与错
they have been gathering this year's crop.they have been___1 assembling it 2 picking it up 3 collecting it 4 bringing it in请问选择哪一个,及分别说出为什么对与错
答案是3
4是一次性的动作,不能用于完成进行时.
2 pick sth up 也是一次性动作
1 assemble往往强调组装（电器）产品
3 collect 在这里是==get in----收割的意思
Where have they been?
They have a____ been there
what have they been doing 是什么时态
What places have they been?怎么翻译?
where have they been?是现在完成时吗?
they have been in kate's for
they have been the subject of debate
they have been acting up more lately
they have been there before.so have i they have been there before.(),() 改为同义句
They have been here once.把been换成came怎么样
they said they have been married for ten years
They have never been opened.为什么不可以是They never have been opened.
they have been here since 1988,对1988进行提问,（）（）have they been here?
They have been friends for 6 years. 改为同义句 They have been friends _______ _______.
They have been skating for five hours 同义句 They have been skating_______ _____ ________ ______
Where have they been?能不能说：They have been in their room.
How long__?Do you know?A have they married B have they got married C have they been marriedD have they been married to
他们结婚十年了 They have been married for ten years 为什么要用have been