题目内容
The company has a free long – distance telephone number ________ consumers can call with any questions they have about the products.
A.unless B.even though C.as if D.so that
D
考查so that引导的结果状语从句。句意:这个公司开通了免费的长途电话,所以顾客可以打电话咨询他们关于这个产品的任何问题。
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