根据句意用所给单词的适当形式填空。每空一词。

小题1:My father’s job is different from those ______________ (spaceman).

小题2:The dentist says we should brush our teeth at least ____________ (two) a day.

小题3:Little Sam looked ___________ (hope) at his mother and expected to get more pocket money.

小题4:To keep fit, we should eat ___________(little) food and do more exercise.

小题5:It is ____________ (possible) for him to finish the hard work within an hour. Let’s help him.

水泥强度检测试体为40mm×40mm×160mm的棱柱体。