问题详情

Which of the following sentences does NOT contain an adverbial clause？

A．I will come with you if you can drive me there.

B．I disagree with you in some points while I admit what you say.

C．It is our duty to serve the people.

D．The materials are good for use because the cost of core part is not high.

请帮忙给出正确答案和分析，谢谢！