thestudentsstoppedtalkingwhentheteachercamein
thestudentsstoppedtalkingwhentheteachercamein(改为同义句)
thestudents________talking____theteachercamein
hecamebackyesterday.igavehimthenoteatonce.(改为复合句)
igavethenotetohim_________hecamebackyesterday.
邮箱: 联系方式: