询问数量：How many...do you have? — 英语选择题
题目
Lingling has ten pencils. Three of them are red, and the others (其余的) are blue. 如果老师用句型问她：How many blue pencils do you have? 她应该回答：A. I have three blue pencils. B. I have seven blue pencils. C. I have ten blue pencils. D. I have thirteen blue pencils.