检验检疫机构对自理报检单位实行备案登记制度，对代理报检单位实行注册登记制度。 (

选择方框内的单词完成下列句子，使句子通顺、正确。每词限用一次。

A. aloud   B. between   C. sweep   D. twice  E. polite   F. friendly

小题1:It’s not ________ to make noise in the movie theater.
小题2: The man _______ Mary and Gina is my new English teacher.
小题3:Could you please _______ the floor? It’s so dirty.
小题4:Please read the message ______, so that we can hear you.
小题5: It’s a good habit to brush our teeth _______a day.
小题6:We like our math teacher, because he is very _______to us.