Question

Choose the most appropriate form of writing:
(1) That last word doubtless contains an allusion to some scene that had taken place between
them.
(2) That last word doubtless contained an illusion to some scene that take place between them.
(3) That last word doubtless contained an allusion to some scene that had taken place between
them.
(4) That last word doubtless contained an illusion to some scene that had taken place between
them.

Answer 1

(3) please let me know your doubts and problems