问题
选择题
To make himself________, the old professor had to______his voice.[ ]
A. hear; raised
B. heard; raise
C. heard; rise
D. heard; raised
答案
答案：B
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To make himself________, the old professor had to______his voice.[ ]
A. hear; raised
B. heard; raise
C. heard; rise
D. heard; raised
答案：B