Question

Last Sunday when we____ (was watching/has been watching/were watching) the electricity went off.​

Answer 1

Last Sunday when we____ (was watching/has been watching/were watching) the electricity went off. were watching

Answer 2

$\mathbb{{\huge{Answer}}}$

$\blue{ Last \: Sunday \: when \: we \: were \: watching \: the \: electricity \: went \: off.}$