Use the preposterous in,for,on,of,at where necessary._1)She is never late ____school. 2)We dont have Computer -surfing ----our timetable. 3)They do a lot of sums ---class. 4)I dont like to sit------the desk in front----- the teacher.-

1)She is never late for school.
2)We dont have Computer surfing on our timetable.
3)They do a lot of sums in class. 4)I dont like to sit at the desk in front of the teacher.