(a) His wisdom consisted in his handling the dangerous situation successfully.

(b) Many a girls was appearing in the examination.

(f) The black vermin are odious creatures.[/QUOTE]

mashaaaaaaaaaal

Use the singular verb with "many a" Use singular pronouns to go with the construction also:
e.g
"Many a [B]man has lost his life at sea
It remained a mystery for many a year. [=for many years]
I've been there many a time. [=many times]
Many a politician has promised to make changes. [Politician and has are singular.]
it is grammer rule that many a takes singular verb and singular noun

and plural verb is use with vermin

i hope u get it