Respuesta:
a) we didnt know your sister / we know your sister
b) he didnt study in london / he study in london
c) they lived in a small house/ they didnt lived in a small house
d) i enjoyed my french lessons / i didnt enjoy my french lessons
e) you didnt understand german very well / you understand german very well
f) she taught english in russia last year / she didnt taught english in russia last year
pd: me das corona? plis
