9. 【2020 •乐山市】—Peter, would you like to go shopping with me?
—I'd love to, ____________ I have to finish my homework first.
A. so B. and C. but
【答案】C
【解析】句意：——皮特，你想要和我一起去购物么？——我想要去，但是我不得不首先完成我的家庭作业。考查连词。so因此；and和；but但是。根据“I have to finish my homework first”可知后面句子表示转折，用连词but表示“但是”。故选C。