Dinner was almost over when Dan still looking hungry grinned and asked Dave he w
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Dinner was almostover when Dan still looking hungry grinned and asked Dave______ he wasn’t goingto have some bread.
A. that B. if
C. whether D. /
试题答案
答案:B
解析:如果引导的宾语从句为否定结构,则用if,而不用whether。
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