用适当的词补全对话，每条横线只填一个单词。    

Mary: 1_        time do you usually get 2 _       on Sunday morning?

Lily: 3_        seven thirty.

Mary: What 4    _   you usually do 5_       Sunday?

Lily: I usually stay at home and do 6____ reading. Sometimes I do my homework

       or clean the house with my mother. What 7____ you?

Mary: I don't often stay at home. Sometimes I go 8 _ __ the park 9   __ my

sister. Sometimes I 10      _ basketball with my friends.

无语言或只言片语，不能理解社会用语，不识数，生活不能自理，但长期反复训练可提高生活自理能力，无劳动能力，其智力水平可能为（）

A.轻度精神发育迟滞

B.中度精神发育迟滞

C.重度精神发育迟滞

D.极重度精神发育迟滞

E.边缘智力