根据短文内容和首字母提示，在空格处填入适当的词使短文完整。（每空一词）

One day Mother looks at Simon's shoes and says, “L  小题1:   at your shoes. They are very dirty（脏）. You must c 小题2:   them.” “ But I cleaned them yesterday,” says the boy. “They are dirty now. You m  小题3:   clean them now.” “I don't want to clean them t  小题4:   . If I clean the pair of shoes today, t  小题5:   will still be dirty tomorrow.” “All right. D  小题6:   do it then.” Simon's mother says.

In the evening, he is very h  小题7:   . He asks his mother to give him s  小题8:   to eat. “You had breakfast in the morning, Simon, and you had l  小题9:   at school.” His mother says. “But I’m hungry a  小题10:   .” “But if I give you something to eat today, you will be hungry again tomorrow.”

哌醋甲酯用于治疗儿童多动症时，每张处方用量（）

A.不得超过一次常用量

B.不得超过3日常用量

C.不得超过7日常用量

D.不得超过15日常用量

E.可以适当延长，医师应当注明理由