| Error | Correction |
|-------|------------|
| hurdle and mazes | hurdles and mazes |
(Both nouns need plural form as multiple obstacles/mazes appeared.)
The error is subject-verb/noun number agreement. "Hurdle" should be "hurdles" (plural) to match "mazes." Examiners award the 1 mark for correctly identifying the wrong word and giving the right correction in table format.