题目

—What are you going to do this weekend? —I’m not sure ______. Maybe I am going swimming. A. also                  B. too                    C. ever                  D. yet 答案：D4．小清调制了2200克巧克力奶，其中巧克力与奶的质量比是1：9．他喝去一半后，剩下的巧克力奶中，巧克力占10%．