21 Sam is always late. It gets ..... my nerves.

Analysis:

The sentence describes Sam's lateness as something that irritates the speaker. The idiom 'gets on my nerves' means to annoy or irritate someone.

Breakdown:

• A to: Incorrect. 'Gets to my nerves' is not the correct idiom.
• B on: Correct. 'Gets on my nerves' is the standard idiom for annoyance.
• C at: Incorrect. 'Gets at my nerves' is not the correct idiom.

Translated Question:

21 Сэм всегда опаздывает. Это действует мне ..... нервы.