赞题库-背景图
单项选择题


A．understand
B．know
C．learn
D．study
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热门试题

单项选择题A．fromB．withC．onD．by

A．from
B．with
C．on
D．by

单项选择题A．whomB．thatC．whoseD．who

A．whom
B．that
C．whose
D．who