Jake his key in the office so he had to wait until his wife home.
A. has forgotten … es
B. forgot… e
C. had left… came
D. had left…would e
网友回答
A. has forgotten … es
B. forgot… e
(答案→)C. had left… came
D. had left…would e
解析：句意：杰克把他的钥匙丢在办公室了，因此他不得不等到他的妻子回家。结合语境可知前文描述的是过去某时前已经完成的动作，故用过去完成时态。下文指的是过去某时的动作，故用一般过去时态。选C。