37) It is estimated that the total expenses in the trial manufacture of the new products will come to 30,000 yuan.
38) Once it was thought that nighttime dreams interfered with our needed rest.
39) It has been observed that unemployment brings enormous psychological troubles.
40) Even so, it seemed to him that he was part of the whole event.
41) It seems to me that the Americans are a highly mobile people. Most of them like to travel whenever they get the chance.
42) It seemed to me that the only thing that mattered was to get her husband back to her.
43) But it is only because it is my work to do so.
44) It is an encouraging sign that people’s purchasing power(购买力)is on the rise.
45) It is common knowledge that chalk absorbs moisture (湿气) 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 foretell a person’s future on the basis of the date and time of his birth.
48) It pays in the long run (从长远的角度看……) 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.