Question

I was here yesterday.l___(call) you at 10 a.m ( fill in the blank with suitable verb form)​

Answer 1

Answer:

I called you at 1 o clock is the answer

Answer 2

Answer:

I was here yesterday. I called you at 10 a.m

Sentence is in past tense , therefore the verb would be in past tense too.

I hope I helped you ! Have a happy day !