So funny that everyone burst into laughing.A. she lookedB. was she lookingC. did she look

问题补充：

So funny that everyone burst into laughing.

A. she looked

B. was she looking

C. did she look

D. had she looked

答案：

A. she looked

B. was she looking

(答案→)C. did she look

D. had she looked

解析：look作“看起来”讲时无进行时态，空格处无需使用完成时。