Theoldlady’shandshookfrequently.Sheexplainedtoherdocto...

問題詳情：

 The old lady’s hand shook frequently. She explained to her doctor ______ this shaking  had begun half a year before, and ______, only because of this, she had been forced to give up her job.

;how  ;when  ;how   ;why

【回答】

C

知識點：複合句

題型：選擇題