题干
You bought a new computer last week, ______ you?
A：aren't
B： don't
C：didn't
D： haven't
答案(点此获取答案解析）
C
You bought a new computer last week, ______ you?
A：aren't
B： don't
C：didn't
D： haven't
根皮苷”，其结果是（ ）