题目内容:
The second report was _____ by August 2005, but one year later it was still nowhere in sight.
A.submitted
B.to have submitted
C.to submit
D.to have been submitted
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答案解析:
The second report was _____ by August 2005, but one year later it was still nowhere in sight.
A.submitted
B.to have submitted
C.to submit
D.to have been submitted