Question

I _ a laptop last month



a.Have bought, b)buy,c)bought



d.Am buying

Answer 1

I have bought a laptop last month

Answer 2

I bought a laptop last month.

Since it is in past, bought is used.

#'Have' is used when the verb is recent

#'Buy' is used, when verb is for future alkng with the word 'will'

#Am buying is for present tense.