1) He was wearing a fur coat ... he went out. a) when  b) while c) both possible 2) She slipped and fell down ... she was skating. a) when b) while c) both possible 3) ... they were sewing, they hurt their thumbs. a) When b) While c) both possible 4) He was looking at the rainbow ... it started raining. a) when b) while c) both possible 5) ... she was throwing a ball over the net, she heard a whistle.  a) When b) While  c) both possible 6) A thief stole money from the wallet ... they were having fun. a) when b) while c) both possible 7) ... a light bulb burnt out, they were arguing.  a) When b) While c) both possible

When and while

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