Réponse :
a) 0 , an
b) the, 0
c) a
d)0
e) 0 , the, the
f) 0 , 0 , an , the
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a) 0 , a , the, the , The , 0 , the, 0
b) the, a , 0
c) 0, an, a, 0, 0, an