Bonjour
<em>If you meant complete with the correct article, it's DES, indefinite article plural</em>
Il va acheter des éclairs.
<em>If you really meant a correct possible adjective, you still have to add an indefinite plural articles which is "DES" which becomes "DE" , partitive article</em>
Il va acheter de bons éclairs.
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hope this helps ☺☺☺
If your asking for the translation: what are the great benefits that science has brought to humans?
Answer:
hvki ohvnj hhfhgg gfhj junk. khbn khfhb ugh
les Oeufs (pluriel) ( eggs)
Un oeuf (singulier)