On(去掉) The first day I went to work in a restaurant,
my boss complained that there were a few（a few改为few） customers coming for dinner.SO I am(am改为was) invited to hava a meal there.I began to look frequent（frequent改为frequently）at my watch,timing （加the）serving
of the meal.Meanwhile,I looked around to see if there
was something (something改为anything）wrong.I waited (加for)35 minutes before my meal was served.I realized that wait(wait改为waiting) too long for service was (加the) reason why business was poor...