Question

Fill in the blank with the most appropriate word.
I've just finished ________ my shopping.

• A. done
• B. doing
• C. to do
• D. did

Answer 1

The correct option is B doing

Here, 'doing' is correct because it implies the act of making something happen through your own action.
'Done' is grammatically incorrect.
Did is incorrect because it is used for positive sentences in the past tense and that the main verb is in its base form.