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I find ________ difficult to remember everything, though I’m still young.

I find ________ difficult to remember everything, though I’m still young.

A．that              B．this              C．it                D．X

---Mr. Black, I find  ______  difficult to play the piano well.

 ---Oh, I think you just need to practice more  

A. it                   B. it is                          C. this                D. that

I find _______ difficult to finish the work on time. We only have three hours left.

A.it                               B. that                     C. its                             D. this

–What do you think of the man？

--I find _____ difficult to work with him.

A．him              B．me               C．it                D．that