1) I was having lunch _____ James arrived. a) when b) while 2) _____ the doorbell rang, I was opening the door  a) When b) While 3) ____ John was singing, I was doing my homework. a) When b) While 4) _____I was making dinner you were setting the table a) When b) While 5) I was buying at the bakery ____ two cars crashed a) when b) while 6) The salesman was helping the customer ____ the thief came into the store. a) when b) while 7) ____ I went to the gym you were having a call conference. That's why I didn't tell you a) When b) While 8) I was looking for a pair of shoes in the store _____ someone stole my bag. a) when b) while 9) ____ we were waiting for the uber outside the cinema, my cellphone died on me. a) When b) While 10) _____ Mrs Scott came back to her hotel, her sister was waiting for her at the elevator a) When b) While 11) I was working out ____ I started to feel dizy a) while b) when

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