题目内容
（请给出正确答案）
[主观题]
Why had there been no calls from the Nelsons for quite some time？A．Mrs. Nelson's appendix
Why had there been no calls from the Nelsons for quite some time？
A．Mrs. Nelson's appendix had been taken out two years before.
B．Mr. Nelson had divorced his wife and had married another woman.
C．Mr. Nelson had decided not to bother the doctor any more.
D．Mr. Nelson's former wife had been very well recently.
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