-I felt left out at the party last night.---Really? you should have said something.A.

问题补充：

---I felt left out at the party last night.

---Really? , you should have said something.

A. If possible

B. If so

C. If necessary

D. If any

答案：

A. If possible

(答案→)B. If so

C. If necessary

D. If any

解析：考查省略句：A. If possible如果可能B. If so如果这样C. If necessary如果必要D. If any如果有一些，句意：昨晚我感觉在聚会上被遗忘了。真的吗？如果这样的话，你应该说些什么。If so=If you felt left out at the party last night.选B。