We must not touch this switch under any ______.
Do you think the reason ________ he gave is believable?
Professor Zhang gave all the textbooks to all the pupils, except ________ who had already taken them.
Although he sometimes loses his temper, his students like him ________ for it.
________ all over the hills and around the lake are wild flowers of different kinds.
I think that this meal was well worth ________ was charged for it.