Réponse:
A) We mustn't telling him what happened.
B) They want their daughter working hard at school.
C) He likes watching T.V before midnight.
D) You shouldn't wasting your time.
E) He stopped to smoking 10 years ago.
F) He went out without taking his umbrella.
G) He'll make them doing the job properly.
H) He's going to Germany to learning the language.
I) He can't stand being alone.