УМОЛЯЮ Choose the appropriate verb forms to complete the sentence.Sofia knew

Упрашиваю Choose the appropriate verb forms to complete the sentence.
Sofia knew that Rome (is / was) the capital of Italy.
We explained that we (will go / would go) on an excursion soon.
I knew that Alexander Pushkin (was born /had been born) in 1799.
This information (can be found / can find) on the Internet.
When we (had met / met), John (had already done / already did) everything for our next class.
Yesterday we (started / had started) our training only after Harris (had returned / returned).
A lot of skyscrapers (were built / built) in New York.
James died the day before yesterday and (will bury / will be buried) tomorrow.
John came up to the table, (sat / had sat) down and began working.
Tom said they (are organizing / were organizing) a coffee break.