Passive voice помогите пж

1.    The children are going to be told a story by their grandfather 2.       Jam is made from fruit 3.       The new sports center will be opened soon 4.       The grass hasn’t been cut yet 5.       Alice was woken up by her mother at 7 o’clock 6.       The dog is walked by the boys every day 7.       The waiter was asked to bring some water by Sue 8.       Her excuse might not be believed by her parents 9.       The painting was valued by an expert 10.   Hot water is provided by the hotel 24 hours a day 11.   Our newspaper is delivered by a boy every morning 12.   The meeting was attended by several important art critics 13.   He likes being given presents 14.   We were invited to a concert last Sunday by them 15.   The mushrooms are gathered by people in autumn