We ________ take clean drinking water for granted. One day we may run out of it.
This was such a _______ test_______ few of the students could work out.
New books have been given out to the students, _______is happy with the books.
We _______of the decision until midnight.
Many newly found old things _______ in the museum this month.
Upon _______ , she laughed and jumped, and then ran out of the room.