频率副词always/usually/often/sometimes的用法 — 英语选择题

Lily 记录了她刷牙和整理书包的情况：刷牙一周7天都做；整理书包一周做6天。另有两个句子：① She ___ brushes her teeth. ② She ___ tidies her schoolbag. 按 7天用 always，5—6天用 usually，3—4天用 often，1—2天用 sometimes 的标准，依次填入的两个词是：A. always; usually B. usually; often C. always; often D. usually; sometimes