Writing prompt: Written Expression.
Following the sequence of pictures below, write a passage titled 'How to make a banana milk shake?'.
How to make a banana milk shake?
Do you like a banana milk shake? And do you know how to make it? If you don't know, let me tell you.

Student essay:
How to make a banana milk shake ? Do you like a banana milk shake . And do you know how to make it ? If you don't know , let me tell you . First , peel the banana . Second , cut the banana into pieces . And then , put the banana into the blender , and pour some milk into the blender . After that , turn on the blender . Last , pour the banana milk shake into a cup and enjoy it !

Corrected essay:
How to make a banana milk shake? Do you like a banana milk shake? And do you know how to make it? If you don't know, let me tell you. First, I peel the banana. Second, I cut the banana into pieces. And then, I put the banana into the blender, and pour some milk into the blender. After that, I turn on the blender. Last, I pour the banana milk shake into a cup and enjoy it!

Error analysis:
error_sentence: Do you like a banana milk shake .
correct_sentence: Do you like a banana milk shake?
error: .
correction: ?
error_type: Punctuation Error
error_severity: 2
error_description: ① Punctuation Error: According to English writing conventions, the special question 〈Do you like a banana milk shake〉 must end with a question mark. Therefore, the period 〈.〉 used for declarative sentences is changed to a question mark 『?』 to form the grammatically correct interrogative structure 『Do you like a banana milk shake?』; ② Space Error: According to English written conventions, no space is needed between the last word and the end punctuation mark; therefore, 〈shake .〉 should be changed to 『shake?』.
error_sentence: First , peel the banana .
correct_sentence: First, I peel the banana.
correction: I
error_type: Sentence Structure Error
error_severity: 3
error_description: Sentence Structure Error: According to English grammar rules, the sentence 〈peel the banana〉, when used as a step description, requires an explicit subject performing the action. Therefore, the first-person subject 『I』 is added to form the complete declarative sentence 『I peel the banana』, satisfying grammatical requirements and making the sentence structure complete.
error_sentence: Second , cut the banana into pieces .
correct_sentence: Second, I cut the banana into pieces.
correction: I
error_type: Sentence Structure Error
error_severity: 3
error_description: Sentence Structure Error: According to English grammar rules, the sentence 〈cut the banana〉, when used as a step description, requires an explicit subject performing the action. Therefore, the first-person subject 『I』 is added to form the complete declarative sentence 『I cut the banana』, satisfying grammatical requirements and making the sentence structure complete.
error_sentence: And then , put the banana into the blender , and pour some milk into the blender .
correct_sentence: And then, I put the banana into the blender, and pour some milk into the blender.
correction: I
error_type: Sentence Structure Error
error_severity: 3
error_description: Sentence Structure Error: According to English grammar rules, the sentence 〈put the banana〉, when used as a step description, requires an explicit subject performing the action. Therefore, the first-person subject 『I』 is added to form the complete declarative sentence 『I put the banana』, satisfying grammatical requirements and making the sentence structure complete.
error_sentence: After that , turn on the blender .
correct_sentence: After that, I turn on the blender.
correction: I
error_type: Sentence Structure Error
error_severity: 3
error_description: Sentence Structure Error: According to English grammar rules, the sentence 〈turn on the blender〉, when used as a step description, requires an explicit subject performing the action. Therefore, the first-person subject 『I』 is added to form the complete declarative sentence 『I turn on the blender』, satisfying grammatical requirements and making the sentence structure complete.
error_sentence: Last , pour the banana milk shake into a cup and enjoy it !
correct_sentence: Last, I pour the banana milk shake into a cup and enjoy it!
correction: I
error_type: Sentence Structure Error
error_severity: 3
error_description: Sentence Structure Error: According to English grammar rules, the sentence 〈pour the banana milk shake〉, when used as a step description, requires an explicit subject performing the action. Therefore, the first-person subject 『I』 is added to form the complete declarative sentence 『I pour the banana milk shake』, satisfying grammatical requirements and making the sentence structure complete.