After ______ for hours over the manuscript, the editor finally caught the inconsistency in the second chapter.
Which choice completes the text so that it conforms to the conventions of Standard English?
- Acheck_circle
poring
- B
to pore
- C
having poured
- D
pouring
Explanation
"Poring" (to study intently) is the correct word and form. "Pouring" means to dispense liquid. The gerund "poring" pairs naturally with "after."