1.b> ; to change the sheets ;
2.b> 1) i> , ; a clean / a blank / sheet of paper ; write each answer on a separate sheet ;
2) ( ..i>); a sheet of zinc ; a sheet of glass , ;
3.b> 1) , / / (, ..i>); the road was covered with a sheet of ice ;
2) (, i>); a sheet of flame ; the rain was coming down in sheets / ;
4.b> .i> .i> ; yellow sheet ;
sheet steel .