- The students, last week, the assignment, completed.
- The assignment completed the students last week.
- Last week the students completed the assignment.
- Completed the assignment last week the students.
The correct sentence structure in English is Time-Subject-Verb-Object. The time (last week) should come first, followed by the subject (the students), the verb (completed), and finally, the object (the assignment). The correct option (c) follows this structure.
