问题
单项选择题
Textile business has become more and more difficult( )the competition grew.
A．as
B．befor
C．since
D．after
答案
参考答案：C
解析： 句意为：随着竞争的加剧，纺织品贸易越来越难做了。主句为完成时，所以用since。
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Textile business has become more and more difficult( )the competition grew.
A．as
B．befor
C．since
D．after
参考答案：C
解析： 句意为：随着竞争的加剧，纺织品贸易越来越难做了。主句为完成时，所以用since。