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【参考答案】

in addition helping→in addition to helping
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A．He thinks that they are of inferior quality.B．He thinks that they are a bargain.C．He thinks that they are overpriced.D．He thinks that they can be purchased at a cheaper price elsewher
A．He thinks that they are of inferior quality.
B．He thinks that they are a bargain.
C．He thinks that they are overpriced.
D．He thinks that they can be purchased at a cheaper price elsewher
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a→an
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