English, asked by Kalpanashewalkar, 5 months ago

I have been working hard ________   arithmetic.

(a) at  (b) to (c) on  (d) some ​

Answers

Answered by vishalnath0706
4

I have been working hard on arithmetic.

Answered by unknown8270
77

Answer:

I have been working hard on arithmetic.

Explanation:

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