被动语态练习题

被动语态练习题
we can finish the work the day after yomorrow.
must i do all the exercises
you must not take the books out of the library
many young people speak english
you must clean your bedroom every day
two years ago we used that machine to make shoes for children
the rain made them give up the picnic
noboby can carry this box
they produce silk in suzhou
pepole play basketball all over the world
we take good care of our textbooks
someone took away the boxes this morning
the foreigners can't understand this word
we should water these flower every day
people used metal for making machines
anyone mustn't forget the history