Вставьте тhe , где это необходимо 31 . . people think that . . lead is . . heaviest metal, but . . gold is heavier. 32 our air hostess said, '. . rack is only for . . light articles. . heavy things such as . . bottles must be put on . . floor.' for more material and information, please visit tai lieu du hoc at 33 . . windows are supposed to let in . . light; but . .windows of this house are so small that we have to have . . electric light on all . . time. 34 there'11 always be a conflict between . . old and . . young. . young people want . . change but . . old people want . . things to stay . . same. 35 . . power tends to corrupt and . . absolute power corrupts absolutely. 36 you can fool some of . . people all . . time, and all . . people some of . .time; but you cannot fool all . . people all . . time.