Fill in the blanks choosing the appropriate idioms:
(at the heart of, hit him on the head with brick. begin to dawn, lose fatth)
(1) When the father learned about his son's misdeeds, it _______________________
(2) Even if you don't succeed at first, don't __________ in yourself.
(3) It is corruption in high places that lies ___________ the non-development of this locality.
(4) On reading exactly the same essays in both answer sheets, it ___________ the examiner that the students had cheated during the exams.