单项选择题

Nancy had (a great deal of) trouble (to concentrate on) her work (because of) the noise (in) the next room.（）

A．a great deal of
B．to concentrate on
C．because of
D．in

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单项选择题

A．good
B．cold
C．out—of—door
D．inside

单项选择题

A．health
B．heads
C．night
D．work

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