Lucy _____ a bag for school.A.need B.needs

Lucy _____ a bag for school.A.need B.needs
Lucy _____ a bag for school.A.need B.needs

Lucy _____ a bag for school.A.need B.needs
Lucy （B.needs） a bag for school.
Lucy上学需要一个包.
Lucy是第三人称单数,动词要用三单形式,加s.

Needs
Lucy第三人称单数，需要加s