"वे बच्चे कल दिल्ली में थे।"

Translation: Those children were in Delhi yesterday.

[vg]

Why not "Those kids were in Delhi yesterday."

[zeebo7]

Also fine.

[vg]

I know it's fine. But thats not one of the correct answers.

[raypab]

कल दो तरह के होते हैं...

[Saransh414686]

The sentence has "thay" in it which has a past tense connotation so the "kal" in the sentence must mean "yesterday"

[jose908457]

Is there any rule to use yesterday,today,tomorrow and the day before yesterday?

[zeebo7]

कल, आज, कल, and परसों

They are used the same way as in English, and the meaning of कल is implied for the conjugation: वह कल गया = He went yesterday. वह कल जाएगा = He will go tomorrow.

[RanjaniRan2]

Also, why is New Delhi flagged as wrong?

[LinguisticBoi]

New Delhi is नयी दिल्ली