Mr Smith is going to give us a talk ___ the study of English on February 17.请问为什么要用on?是不是有什么固定搭配呀?

Mr.Smith is going to_______[gil]the lecture to them. Mr Smith is going to retire in a quiet and beautiful place改为同义句 Mr Smith is going to retire___ Mr.Smith is going to live in a quiet place in the countryside 改为同义句Mr.Smith is going to live ____ ____ in the countryside Mr Smith is going to retire in a quiet and beautiful place改为同义句Mr Smith is going to retire___ ____ and ____. Mr.Smith is going to live in a quiet place in the countryside.（改为同义句） Mr.Smith is going to live ______ ______ in the countryside. Joan,__ Mr Smith is going to marry,is a textile worker. Mr.Smith is going to _plant flower in two weeks_.对画线部分提问 Mr.smith is ill,so Mr.White is going ______ his class_____.A take off B to take...insteadC take over D to taking instead of Mr Smith is going to retire in a quiet and beautiful place 改为同义句Mr Smith is going to retire ———— ————and———— Mr Smith is going to live in a quiet place in the countryside.改为同义句Mr Smith is going to live —— —— in the countryside 翻译Mr.Smith, together with his wife and children, is going to the party this weekend.谢谢 合并成含非限制性定语从句:Miss Smith is going to marry Mr Alcott.You met him at our house. Mr .Smith is going to Hawaii in D_____ and he will stay there till New Year's Day 八年级英语 急! Mr.Smith is going to retire in a quiet and beautiful place.（同义句转换） M八年级英语 急!Mr.Smith is going to retire in a quiet and beautiful place.（同义句转换）Mr.Smith is going to retire （ ） Mr Smith is going hiking on Sunday(对划线部分提问)----is Mr Smith-----on Sunday?(一空一词) Mr.Smith told me he___take a trip to London the next weekA wroteB was going toC was about toD is going to Mr Smith ,it is a notice to the audience.意思 is mr.smith going to give us a speech this afternoon?he/ ,i think.he went to the usa just now/处填mustn't还是can't