英语问题（使两句的意思相同或相近）
1.It so happened that I met her while l was having dinner at the restaurant.
l happened___ ___her while___dinner at the restaurant
2.Playing all day and not studying hard not pleasing
lt is___ ___playing all day and not studying hard
3.His foot was hurt so badly that he couldn't walk any longer.
His foot was hurt so badly that he could___ ___walk