Alone in the garden sat the girl thinking for a long time of life was like with her t

问题补充：

Alone in the garden sat the girl, thinking, for a long time, of life was like with her teachers and classmates in the past.

A. what

B. which

C. how

D. that

答案：

(答案→)A. what

B. which

C. how

D. that

解析：考查名词性从句。句中what引导宾语从句，在从句中作宾语，故选A。