Theoldlady'shandshookfrequently.Sheexplainedtoherdocto...
来源：语文精选馆 2.24W
问题详情：
The old lady's hand shook frequently. She explained to her doctor _____ this shaking had begun half year before, and _____, because of this, she had been forced to give up her job.
A. when; how B. how; when C. how; how D. why; why
【回答】
C
知识点：连词
题型：选择题
