Change to the passive voice 1.you must try this new vitamin 2.were these new books purchased by her yesterday? 3.the worker has made an agreement with their emp

Change to the passive voice
1.you must try this new vitamin
2.were these new books purchased by her yesterday?
3.the worker has made an agreement with their employers about the wages
4.he gobbled his sandwiches due the limited time
5.she is frying a fish when i come
6.we must hold the flag ceremony on Mondays
7.Do you often visit your grandmother on lebaran
8.Mr. wuteaches us english this year
9.mr.WaynRooney can play football well although he is sick
10.Mr.Granny has already prepared lunch for us