i found it impossible to do the job by himself.可以省by吗?

i found it impossible to do the job by himself.可以省by吗? 11.Why not _____ him do the job by himself?A.to let B.lettin 分析句子结构:I found it impossible to do it.. 分析句子结构:I found it impossible to do it I found it impossible to answer all the questions. Believe in him.He is a___ to finish the job all by himself When the old man came to life,he found himself by some docte When the patient came to life ,he found himself( )by a group He found __ hard to work out the problem by himself . I can do it by myself 中的by 可以去掉吗 We find it impossible to work out the problem by ourselves 1.I found it was impossible to finish the work in two hours