问题补充:
Peter was so tired that he went to bed early , .
A. leaving his homework unfinished
B. leaving his homework being unfinished
C. leaving his howework unfinishing
D. to leave his homework unfinished
答案:
(答案→)A. leaving his homework unfinished
B. leaving his homework being unfinished
C. leaving his howework unfinishing
D. to leave his homework unfinished
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