19. Reading her biography, I was lost in admiration for __________ Doris Lessing had achieved in literature.
A
what
B
that
C
why
D
how
介词for后面是宾语从句,从句中缺少宾语,故选项A符合答案。
根据句意:读完了她的自传后,我沉迷于Doris Lessing在文学上做出的贡献。
对宾语从句不熟悉。