Many a student _______ wearing MP3 players while walking on the street. It’s quite dangerous.
A. is used to B. are used to
C. was used to D. were used to
Many a student _______ wearing MP3 players while walking on the street. It’s quite dangerous.
A. is used to B. are used to
C. was used to D. were used to
【解析】选A。考查主谓一致和动词时态。many a/an+单数名词作主语，谓语使用单数，故排除B和D两项；从后面的It’s quite dangerous. 可知句子谓语使用一般现在时，故选A。