B
The classmate and friend 用了定冠词The且classmate and friend 用的都是单数,说明特指那个既是同学又是朋友的人.第三人称单数用does help.
The classmate and friend ____ me with my math often .
The classmate and friend ____ me with my math often .
A.do help B.does help
A.do help B.does help
英语人气:607 ℃时间:2019-08-20 21:15:18
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