1) I was having lunch _____ James arrived. a) when b) while 2) ____ John was singing, I was doing my homework. a) When b) While 3) _____I was making dinner you were setting the table a) When b) While 4) _____ the doorbell rang, I was opening the door  a) When b) While 5) I was buying at the bakery ____ two cars crashed a) when b) while 6) Sally was playing around the garden ____ her mother was talking on the phone a) while b) when 7) The salesman was helping the customer ____ the thief came into the store. a) when b) while 8) My mom was squeezing lemons ____ I was cutting the lettuce a) while b) when 9) ____ my brohter was watching formula 1 I was watching the Chicago Bull's game  a) While b) When 10) ____ we were waiting the uber outside the cinema, my cellphone turned off a) When b) While

WHEN vs WHILE

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