Réponse :
1)
a) Do you think the inspector will solve the mystery ?
b) What were the killers doing ?
c) Why is the weapon feared ?
d) How much time will it take ?
2)
a) Are you listening to some strange noises ?
b) What was he doing ?
c) Are they looking at some fingerprints ?
d) Do the suspect comes from England ?
Explications :
feared = redouté