Выбери что больше подходит по тексту и по содержанию. В целом я удивлён твоему вопросу. Примеры очень лёгкие, если конечно ты такого ещё не проходила.

"If you only knew"
"If you had only known"

"He'd never seen her closer then 250 m"
"He had never seen her closer then on distance of 250 m"

"In general there wasn't any"
"In general there was non of them"
"Overall there was no such case".