Complete the text with suitable prepositions.
Parents have a desire (a) ______ a bright future (b) ______ their children. They are ready to do anything which may be congenial (c) ______ the success (d) ______ their children. Every success (e) ______ their children makes them happy and they become sanguine (f) ______ their bright future. But when the children do not pay heed (g) ______ the suggestions (h) ______ their parents and fail to move forward as the parents want, all their hopes end (i) ______ smoke. So, children must be cautious (j) ______ it.