There are lots of rules at Selinas school.She agrees with so

There are lots of rules at Selinas school.She agrees with some_16_them.For example,they cant
arrive_17_,they cant run in the hallways,and they cant eat in class.All_18_rules are okay because theyre reasonable(合理的）.But there are some rules Selina_19_agree with.For example,at her school they have to wear uniform and they cant wear jeans.But she thinks jeans are_20_because theyre comfortable(舒服的）.At school,they cant listen to music in art class.Selina doesnt agree with this rule.She thinks_21_music in art class is okay.Selina_22_has to follow(遵守）some rules at home.For example,_23_she wants to watch TV,she has to finish her homework first.And she cant go out with her friends_24_school nights,that is,from Monday to Friday.She also has to clean her room_25_week.Luckily,she doesnt have to take out the trash(垃圾）.She hates it.
18.A.this B.that C.these D.it
20.A.good B.heavy C.bad D.expensive