（1）It is the teacher’s b（） to see that his pupils study thei

（1）It is the teacher’s b（） to see that his pupils study thei 英译汉（数学论文）It is possible to see that S with the family of nor 1.（ ）a teacher,John thinks that his main duty is to heip the tom is ( A ）in the classroom and （ B ） to his teacher carefu The pupils are listening to the teacher carefully.(怎么改为否定句?） it‘s six o'clock（）supper A、for B、to C、have the teacher knew The teacher told me that the students I wanted to see were s 英语翻译1,In the long run,it is worthwhile to pursue one’s study I found ( ) hard to study English.A.that B.it C.it's D.its He rangs almost the best pupils of his grade,it's surprising 1、It is considered by some people that to see a movie will b 1.The TV set belongs to William's sister.It is----a.his b.hi