【評論主題】23. The Navy Command Headquarters says it has disciplined nine military personnels over the killing

【評論內容】

personnel人員(總稱)或人事部門，因此不能加s

【評論主題】31. One common aspect of instruction across the first-grade classrooms was that teachers(A )suppleme

【評論內容】

which was characterized "by" 需要加上by嗎？