that caused him to serve dinner an hour later than usual. [ ]A. It was us being
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![that caused him to serve dinner an hour later than usual. [ ]A. It was us being](/pic/43_1422000.jpg)
_______ that caused him to serve dinner an hour later than usual. [ ]A. It was us being late
B. It was we were late
C. It was because we were late
D. It was our being late
试题答案
D