问题补充：
The most delicious bread in the world by Mom. Please wait an hour to enjoy it.
A. bakes
B. is baked
C. is baking
D. is being baked
答案：
A. bakes
B. is baked
C. is baking
(答案→)D. is being baked
解析：
这题考查时态，根据下文Please wait an hour to enjoy it. 请等一小时享受它，说明面包正在被烤。用进行时的被动语态，D项正确。
