81.   Holtz took him upstairs to see one of the large second-floor spaces that had once been used for wedding receptions.

82.   However, there are occasions when speech is used for the detailed transmission of factual information.

83.   Hydrogel contact lenses, for example, can be used for the controlled release of antibiotics to patients waiting for cataract surgery.

84.   I chopped up the old fence and used it for firewood.

85.   I have been using it for some years and encourage my Junior staff to do the same.

86.   I searched the horizon but could not see the hill I used for navigation.

87.   I still had tickets to use for this season, and now those will just go to waste.

88.   I think animals have rights, and we ought not to use them for experiments.