The students _____that our class will visit a water treatment factory this afternoon.A.knew B.are knowing C.will known D.have known（答案选D,为什么不选A?) 要具体分析哦（The students _____that our class）作主语，knew表示一个

The great man died twenty years ago.同义句转换 It ______twenty years _____th the students()()()the teacher most students most of students most of the students都对么?all students all the students？all of the students？ What are the students What are the students Where the students是什么意思 the students'life today Are the students happy? The number of students the students is /are The students aren Give the students lessons. The students' parents died. the student、students the students 的区别应该是students、the students student ,the student, students the students 的区别 the student,the students,a student,students的区别 all the students 还是all of the students The students are relaxing.对relaxing提问------ ------the students ------?