C'_______ (etre)terrible!

Question

(Fill in using the passé composé)
Would the correct answer be "C'est été terrible"?

Answer 1

If it MUST be the passé composé (although l'imparfait looks better!), it is:

être uses avoir = a été but you will NOT begin with C' instead Cela a été. If, however, you MUST begin with C' then it has to be the Imperfect = C'était...

Sra (aka Mme)

Answer 2

est