1) I was having lunch _____________ James arrived. a) when b) while 2) ___________I heard the doorbell, I went to the door. a) when b) while 3) ____________Jo was washing her hair, I was doing my homework. a) when b) while 4) _______________I was buying the bread, you could go to the butcher's. a) when b) while 5) I was at the baker's ____________ I met Jo. a) when b) while 6) The customer was being helped by the salesman ________ the thief was running into the store. a) when b) while 7) _____________I was in the shop , someone was stealing my bag. a) when b) while 8) I hurt my back ___________ I was trying to lift the piano. a) when b) while 9) _______________ we were standing outside the cinema, someone was asking me the way to the post office. a) while b) when 10) _______________ Mrs Scott came back to her hotel, she called the elevator. a) when b) while

while/ when (primary5)

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