He found difficult to be a top student.填什么?A.it a
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He found it difficult to be a top student.
======以下答案可供参考======
供参考答案1:
found 后面加it
供参考答案2:
应该是 he found it difficult to be a top student. 意思是 他发现成为一名顶尖的学生很难。
供参考答案3:
it is供参考答案4:
He found it difficult to be a top student他发现做一个尖子生很难。
=he found that it was difficult to be a top student
find it difficult to do sth