Question

the children ____T.V since 4o'clock . ( watch ) change itno perfect tense​

Answer 1

$\huge{\red{\underline{\underline{\bold{AnSweR:}}}}}$

Present Perfect:-

The Children have watched TV since 4 o'clock.

$\sf{✯{\underline{Structure:-}}Subject+has/have+V3+Object}$

Past Perfect:-

The Children had watched TV since 4 o'clock.

$\sf{✯{\underline{Structure:-}} Subject+had+V3+Object}$

Future Perfect:-

The Children will have watched TV since 4 o'clock.

$\sf{✯{\underline{Structure:-}}Subject+Model-1+have+V3+Object}$

Hope It Helps You ✌️

Answer 2

(were watching) is the answer