帮忙解到英语改错题

帮忙解到英语改错题
It was the first time he had gone to workin a restaurant.1______
my boss complained that there were few customer 2_______
coming for dinner,I am invited to have a meal 3_______
there.After ordered two ice creams and a steak,4______
and I began to time how long it would take the 5_______
cook to get them ready.I took out a book to read.6_______
To my disappointment,I waited for 35 minetes after7_______
my meal was ready.I realized that wait too long 8_______
was reason why business was not good.I wrote 9_______
a report of my findings and present it to the boss 10______