45) It is common knowledge that chalk absorbs moisture (濕氣) from the air.
46) It might be a way to avoid the indignity of having to ask for money all the time.
47) It used to be a popular belief the we could gydjdsj.org.cn foretell a person’s future on the basis of the date and time of his birth.
48) It pays in the long run (從長遠(yuǎn)的角度看……) to introduce new technique
49) It is time for out symbols of technology to change — to catch up with the quickening changes in technology itself.
50) It has been only twenty-five years since television came to one of people’s pastimes.
51) It may well come as a surprise to learn that not only psychologists but other behavioral scientists have come to accept the positive contribution of work to the individual’s happiness and sense of personal achievement.