赞题库-背景图
单项选择题

A．a number of
B．little
C．few
D．plenty of
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热门试题

单项选择题A．difficultyB．exactlyC．easilyD．only

A．difficulty
B．exactly
C．easily
D．only

单项选择题A．whatB．whichC．thatD．it

A．what
B．which
C．that
D．it