Why we use the gerund and not the noun?

[Stefan]

Test No. incompl/elem-27 "Sailing", question 7

But not in ........., eh?

(a) practices
(b) practice
(c) practical
(d) practicing

Test No. incompl/elem-27 "Sailing", answer 7

But not in practicing, eh?

Correct answer: (d) practicing

Your answer was: incorrect
But not in practice, eh?
_________________________

Why we use the gerund and not the noun???

Thanks

[Alan]

Yes, you're quite right. It should be in practice. Thank you for pointing this out -we'll get it corrected.
_________________
English as a Second Language
You can read my ESL story Future

[Ella]

Dear Alan, you forgot to change practicing to practice in the correct sentence.

[Torsten]

Hi Ella,

Many thanks for reminding us - it'll be amended with the next update.
Regards
Torsten
_________________
Test Of English for International Communication
TOEIC Preparation & TOEIC Vocabulary