Réponse :
Bonjour,
A/ The ammonium nitrate wasn’t under police surveillance in Beirut harbour.
B/ The Mauritius authorities didn’t wait to ask for International help.
C/ The volunteers didn’t rescue all the oiled birds.
D/ Neymar didn’t score for PSG on Sunday 23rd August.
E/ PSG didn’t win the match.
Explications :
Forme négative Simple Past ( Prétérit )
==> didn't + base verbale ( infinitif sans "to")
Attention WAS/ WERE deviennent wasn't et weren't à la forme négative