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Boy: Who's that?

Teacher: It's Albert Einstein.

Boy: Why [ ] he famous?

Teacher: He [was|were|wasn't|weren't] a scientist.

Boy:[Was|Were|Wasn't|Weren't] he English?

Teacher: No, he [was|were|wasn't|weren't]. He [was|were|wasn't|weren't] German. He [was|were|wasn't|weren't] born in Ulm.

Boy: And [was|were|wasn't|weren't] he a musician?

Teacher: Yes, he [was|were|wasn't|weren't]. He [was|were|wasn't|weren't] a great violinist. He [was|were|wasn't|weren't] interested in music.