问题
选择题
Whether the wounded ________ sent to the hospital _______ unknown.
A．has been; is
B．have been; are
C．were; are
D．have been; is
答案
答案：D
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Whether the wounded ________ sent to the hospital _______ unknown.
A．has been; is
B．have been; are
C．were; are
D．have been; is
答案：D