句型转换1He was once a naughty boy but is not now.He _ _ _ a naughty boy.答案：used to be2It is a good habit to get up early._ _ early is a good habit.答案：Getting up3He stayed up late into the night and prepared for an important examination the following day.He stayed up late into the night, _ _ an important examination the following day.答案：preparing for4Talking loudly is not allowed in the library.We dont _ _ loudly in the library.答案：allow talking
