English, asked by Kalpanashewalkar, 13 days 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:

please mark it brainliest and folow me

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