填空题

S1

【参考答案】

uses→used
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单项选择题
A．He isn’t having much trouble.B．He understands very little.C．He tried very hard to finish the reading last night.D．He hasn’t been doing much of the reading.
A．He isn’t having much trouble.
B．He understands very little.
C．He tried very hard to finish the reading last night.
D．He hasn’t been doing much of the reading.
单项选择题
He never attempted to ______ any excuse for being late.
A．fluctuate
B．fabricate
C．lubricate
D．manipulate
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