问题
选择题
I asked him whether he had done all the work himself ________ whether he had had any assistance.
A．and
B．but
C．nor
D．or
答案
答案：D
因为只有or才能表示选择，意为“(是…) 还是”。
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I asked him whether he had done all the work himself ________ whether he had had any assistance.
A．and
B．but
C．nor
D．or
答案：D
因为只有or才能表示选择，意为“(是…) 还是”。