I am teaching a student English and the below question was in his test paper. I intuitively feel that both options one and two are not incorrect, but his answer key states that option one is the correct one. Which is the correct one and why?
"Tom gave up looking just as I said he would, _____?" Geetha asked.
(1) didn't he
(2) hasn't he
(3) hadn't he
(4) wouldn't he