1 - B 2 - A 3 - D 4 - E 5 - C
1 The cashier made sure the alarm system was working before he started his shift. 2 The cleaner had to wash the floor after someone spilt some orange juice. 3 The manager had to hire extra staff over the busy Christmas period. 4 The shop assistant went to find a larger size for a customer. 5 The shop had a big queue of people waiting to pay.
Ответ: see above