高中英语定从专练1.when i came across her,____ was often the case ,ll

高中英语定从专练
1.when i came across her,____ was often the case ,ll liked her sweet and hopeful smiles .
Awhat b which c that d when
2.it wasn't such a good dinner _____ she had promised us .
Athat b which c as d what
3._____is konwn to the world ,mark twain is a grea American writer
Athat B which C as Dit