I enjoyed the movie very much. I wish I had read the book from which it was made.
电影不错,我希望我读过原著。[wish + 主语 = 过去完成时 = 愿望之事在wish以前发生。]
But I'm worried about his Chinese.He may fall behind the other students when he comes back.
但我担心他的中文。等他回来后,他可能会落到其他同学后面。