OK. "What he wrote was right". Saya tahu ini bukan tempat yang tepat untuk memasukkan kalimat itu, tapi kalimatnya tetap benar nevertheless.
What he wrote was true should be acceptable.
There are another acceptable answer with slightly different meaning in English.
What he had written IS true. It means that what he had written is still true now as in the past.
Kenapa pake "was"??
Karena kalimat nya lampau, was itu sama dengan is, sedangkan were sama dengan are, jadi was dan were di pakai ketika kalimat lampau, seperti kalimat di atas
Why was "telah" not used in this sentence?