四.CAABA DCCAD BACBA BCCCD
八.CBCDA BDBAD
九.(a)DACBD (b)ADCDB(c)11.May 27 12.They will have a picnic
13.because he is very busy 14.She is cooking some food 15.Raining
十CEADB
不知道你要的是不是这个
四.CAABA DCCAD BACBA BCCCD
八.CBCDA BDBAD
九.(a)DACBD (b)ADCDB(c)11.May 27 12.They will have a picnic
13.because he is very busy 14.She is cooking some food 15.Raining
十CEADB
不知道你要的是不是这个