lt is necessary to study hard at school.同义句

lt is necessary to study hard at school.同义句 lt's necessary for student to study hard同义转换 It's necessary to study hard in the school.(改为同义句) study har It’s necessary to study hard at school. Its necessary to study hard at school ( ) ( )study hard at s We each study hard at school的同义句 lts necessary to study geography at school To study hard is important for students.同义句 以it is necessary to study geography at school 为题的 英语作文 ,急用 As a student,you should study hard at school.同义句转换 It is necessary for us to work hard every day 同义句 It is necessary that you arrive at school on time.同义句转换You__