单句改错（共10小题；每小题1分，满分10分）

小题1:Festivals and celebration has been held everywhere since ancient times.

小题2:His restaurant served far too many fat.

小题3:It likely to rain.

小题4:I look forward to receive your reply.

小题5:He sat in his empty restaurant feel very frustrated.

小题6:His job is teaching physics in an local middle school.

小题7:Great changes have been taken place in the past ten years.

小题8:Festivals let us to enjoy life and be proud of our customs.

小题9:I was happily when I heard the good news

小题10:Body language is one of the most powerful way of communication.

f(x)=x+在[0，4]上的最大值为（）