Question

Please check if the following prepositions are properly placed..

at in back with under into out between against

On the last day of the exams, Swaminathan strode (out) of the examination hall. He stood (in) the school veranda, turned (back) and looked (into/at) the hall.
With his left shoulder resting (against) the wall, Shankar was lost to the world.Rajam sitting (under) the second ventilator, (between) two Third Form boys, had become a writing machine. Mani was still gazing (at) the roof, scratching his chin (with) the pen

Answer 1

yes these all are correct :)

Answer 2

YES i think its correct !