---Anna can’t go to school these days .-? ---Because she is in hospital now.A. Why /B.

问题补充：

---Anna can’t go to school these days .

---?

---Because she is in hospital now.

A. Why, /

B. Why not, /

C. Why, the

D. Why not, the

答案：

A. Why, /

(答案→)B. Why not, /

C. Why, the

D. Why not, the

解析：because常用来回答以why引导的特殊疑问句；in hospital表示生病住院，in the hospital表示在医院里。