Question

Select the verb that best completes this sentence.
Le mont Nimba
été classé le plus grand sommet en Afrique.
A.
a
B.
ont
C.
sont
OD.
est

Answer 1

Answer:  A.  a

Must agree with singular third person subject, Le mont Nimba.

Explanation:  a is the present tense third person singular form of avoir, the auxiliary  (helping verb) used for most passé composée verb phrases.