i find it difficult to achieve this goal中的it是作什么成分.形式宾语吗?i find it is difficult to achieve.这句话是对的吗.

I find it difficult to learn English well的复合句 .Loved:.In fact,I find it difficult to have the ] I find it difficult用这英文怎么造句 I find it difficult to learn English well,Professor Smith I find it difficult to solve this problem .(改为复合句) I find it difficult to learn English well.这里,为什么不是it is difficult?求解! I find that it difficult to find a job ,那个 it 后面要不要加is I find it difficult to remember everything.（改为复合句） I find —— —— —— difficult to I find it difficult to learn English well【改简单句】I find()()()learn English well I find it difficult to learn math well.改同义句I find it difficult to learn math well.I find ______ ______ _____ ______ math well. find it difficult to do, I find it difficult to learn math wellI find it difficult to learn math well.改为同义句I find ______ ______ _____ ______ math well I find（）difficult to find a job是填it还是that 为什么 I find it's difficult to learn English well.改同义句 I find it ______ ______ _______ _______ EnglisI find it's difficult to learn English well.改同义句 I find it ______ ______ _______ _______ English well. 分析句子I find it difficult to do为什么it 后不加is I find it difficult to be a good teacher.和I find it is difficult to be a good teacher.有什么区别?第一句的句子成分是什么？ I find it difficult to finish the job.帮忙分析下句子成分I find it difficult to finish the job.帮忙分析下句子成分? I find it difficult to decide where to go.还是I find it 's difficult to decide where to go拜托了各