单项选择题


A．protects
B．promises
C．guarantees
D．ensures
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单项选择题
The plane ______, its bomb exploding as it hit the ground.
A．smashed
B．crushed
C．plunged
D．crashed
单项选择题
As a ______ actor, he can perform, sing, dance and play several kinds of musical instruments.
A．flexible
B．versatile
C．sophisticated
D．productive
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