He did not regret saying what he did but felt that he it differently.
My sister______ the League last month and she has decided to ______ the activity to help the aged next week.
--- What did he say? ---- He said he ________ the sentence in his own words.
I have no doubt in my mind______ they will be glad to see me.
Eric received training in computer for one year, _______ he found a job in a big company.
With the help of high technology, many new substances(物质)______in the past years.