77．helped—helping 78．删去the 79．for—of 80．formed—forms
81．but—and 82．hundreds—hundred 83．accept—receive 84．from—with
85．删去been 86．√
略
77．helped—helping 78．删去the 79．for—of 80．formed—forms
81．but—and 82．hundreds—hundred 83．accept—receive 84．from—with
85．删去been 86．√
略