they have been trying to find out how the fire began.句子成分怎么分...?how the fire began是find out的宾语,那从整个句子来看成分怎么分呢?谢谢.
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theyhavebeentryingtofindouthowthefirebegan.句子成分怎么分...?howthefirebegan是findout的宾语,那从整个句子来看成分怎么分呢?谢谢.t
they have been trying to find out how the fire began.句子成分怎么分...?how the fire began是find out的宾语,那从整个句子来看成分怎么分呢?谢谢.
they have been trying to find out how the fire began.句子成分怎么分...?how the fire began是find out的宾语,那从整个句子来看成分怎么分呢?谢谢.
they have been trying to find out how the fire began.句子成分怎么分...?how the fire began是find out的宾语,那从整个句子来看成分怎么分呢?谢谢.
主 谓 宾 [ 宾语从句]
（they ）（have been trying） （to find out [how the fire began].）
to find out how the fire began 动词不定式在整个句子中作宾语
What caused the fire? At last firemen have put out a big forest fire in California. Since then, they have been trying to find out how the
Where have they been?
They have a____ been there
I've been really tryin',baby是什犘意思
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