题干
Boys and girls, did you enjoy ___________ in the park yesterday?
A：you
B：yours
C：yourself
D：yourselves
答案(点此获取答案解析）
D
Boys and girls, did you enjoy ___________ in the park yesterday?
A：you
B：yours
C：yourself
D：yourselves
，且他们是否破译出密码互不影响．
