问题
选择题
23．Robert made a call to his parents yesterday afternoon. To his disappointment, ____of them answered it.
A．either
B．both
C．none
D．Neither
答案
答案：D
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23．Robert made a call to his parents yesterday afternoon. To his disappointment, ____of them answered it.
A．either
B．both
C．none
D．Neither
答案：D