select the most appropriate word to fill in the blank. He had hardly gone a few kilometres ______ his car broke down. (a) when (b) that (c) where (d) than

Options

A. when
B. that
C. where
D. than

Explanation

Hardly always takes “when” as conjunction:
No sooner…………...than
Hardly………………..when
Scarcely ……………..when