I saw Bob play the piano at John's party and on that ________ he was simply brilliant．

1. A.
   scene
2. B.
   occasion
3. C.
   circumstance
4. D.
   situation

I saw Bob play the piano at John’s party and on that __________ he was simply brilliant.

 I saw Bob play the piano at John's party and on that ____ he was simply brilliant.

A. scene                            B. circumstance           C. occasion                 D. situation

I saw Bob play the piano at John’s party and on that _______ he was simply brilliant.

A. scene　　　　　　 B.circumstance　　　 C. occasion　　　　 D.situation

I saw Bob play the piano at John’s party and on that __________ he was simply brilliant.