7409 - Intermediate\Upper-Intermediate Test:12 - He is thinking _____ retiring _____ his post several years before the normal age.

He is thinking _____ retiring _____ his post several years before the
normal age.
of / of
of / from
about / of
of / for
Intermediate Grammar Exercises
English Vocabulary Tests
Table of English Grammar Contents (All Levels)
Elementary Grammar Exercises A1