1Teachersshouldbe的精选

问题详情：1.Teachersshouldbe________(严格)withtheirstudents.2.Tomwasill,sohewas________(缺席的)inclassyesterday.3.Manykindsofgoodseedsare_______(挑选)byfarmerseveryyear.4.It’sdifficulttofindatimethat__...