-My English teacher said I’m hard-working. ---Really? You’re .A. luckB. luckyC. luckily

问题补充：

---My English teacher said I’m hard-working.

---Really? You’re .

A. luck

B. lucky

C. luckily

D. lucks

答案：

A. luck

(答案→)B. lucky

C. luckily

D. lucks

解析：放在be 动词后。为形容词，故选B