My grandfather (0) C to the same school as me. He

My grandfather (0) C to the same school as me. He (1) ______ to our school last week to talk to the class about what it (2) ______ like in the old days. He (3) ______ he (4)______ the names of all his teachers. One of them still teaches at the school.
He (5) ______ art and music, but now he only teaches music. As he (6) ______ , he
(7) ______ us pictures of his school friends. He (8) ______ us that the boys
(9) ______ only football, but now we play basketball as well. He thinks things
(10) ______ better in the old days.

0 A goes B was going C used to go
1 A comes B came C was coming
2 A was being B is C was
3 A said B says C was saying
4 A remembered B remembers C was remembering
5 A is teaching B used to teach C teaches
6 A talks B is talking C was talking
7 A is showing B showed C was showing
8 A told B is telling C tells
9 A play B were playing C used to play
10 A are B were C used to