Professor Simpson _____ the project carefully and made a few corrections.
A. went up
B. went down
C. went after
D. went over
A. went up
B. went down
C. went after
D. went over
【答案】
A. went up
B. went down
C. went after
D. went over
A. went up
B. went down
C. went after
D. went over
【答案】
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