The young man went into the cinema and after seemed half an hour he came out.A. thatB. it

问题补充：

The young man went into the cinema and after seemed half an hour he came out.

A. that

B. it

C. what

D. which

答案：

A. that

B. it

C. what

D. which

解析：what 引导名词性从句作介词after的宾语。