The boy was so dirty that he looked as if he ... in the mud.

অপশনসমূহ
সঠিক উত্তর চিহ্নিত
ক rolled
খ has rolled
গ had rolled
ঘ is rolling
ব্যাখ্যা ও সমাধান
When the main clause is in the past tense (looked), the clause following 'as if' / 'as though' takes the past perfect tense (had rolled).