Question

--- Did you know __________?
--- He was ill in hospital.

1. A.
   why he doesn’t come to school
2. B.
   why he didn’t come to school
3. C.
   why does he come to school
4. D.
   why did he come to school

Answer 1

B
试题分析：英语宾语从句中一般为陈述语序。联系下文，他生病住院了。可知上文描述的是过去发生的动作，故用一般过去时态，选B。
考点：宾语从句及其时态
点评：宾语从句中一般为陈述语序，需注意当疑问词做从句主语时，则貌似倒装句，需注意区分。关于引导词的区分需结合引导词的基本含义及其在句子中所承担的句子成分进行具体分析。英语宾语从句的时态和主句没有必然的联系，需结合语境进行具体分析。