Incorrect word order
You eat first.
Our hands get dirty from working.
Incorrect pairing
Despite the sweltering heat, everyone persisted in exercising.
Martha was wearing a blue trench coat and a yellow hat.
Ingredients missing
I learned a lot from what the teacher said.
It is shameful to not cherish food and to waste it at will.
Semantic repetition
During class, Xiaohua kept her eyes fixed on the teacher.
The square was packed with an indeterminate number of people.