Children are fond ____sweets. (fill the given sentence by preposition​)

Choose the appropriate preposition for the given sentence : The professor has been absent …..Monday.

Choose the appropriate prepositions for the given sentence: The discounted price is .....24 hours only.

Choose the appropriate preposition for the given sentence : The trend is to retire…..thirty years of service.

Choose the appropriate preposition for the given sentence : She hid her disappointment …..a smile.

Choose the appropriate prepositions for the given sentence: The sale will last .....7 days.

Choose the appropriate preposition for the given sentence: The model you ask ….. is out of production.

Choose the appropriate preposition for the given sentence: The flowers withered .....the hot sun.

Choose the appropriate preposition for the given sentences: Did you arrive there_____ night?