“my favorite food is hamburger”裏“hamburger”要不要加s? 是“my favorite food is hamburger”對,還是“my favorite food is hamburgers”對?

“my favorite food is hamburger”裏“hamburger”要不要加s? 是“my favorite food is hamburger”對,還是“my favorite food is hamburgers”對?

my favorite food is hamburgers是對的,is與food保持一致