48. Mai is eating breakfast too slowly. She will be late for school.
-> If Mai doesn't eat breakfast too slowly, she will not be late for school
49. Minh often forgets to turn off the light when he gets out of the room. The
electricity bill will be really high.
-> If Minh often  forgets to turn off the light when he gets out of the room,The
electricity bill will be really high.
50. The manufacturers put too much packaging on the things they produce, it
is really wasteful.
-> If The manufacturers put too much packaging on the things they produce, it will be really wasteful