busy with doing
【问】 The teachers are 
《英语高考精典》(人民日报出版社，1992年，P. 132)认为必须把with改为in。您认为有此必要吗?
【答】 这道判错题本身并没有错误。见busy in doing/busy with doing。
赵振才 编著.英语常见问题解答大词典.哈尔滨：黑龙江人民出版社.1998.第210页.
- admit
- admit/admit of
- admit/admit to
- adopt/adapt
- adverb as preposional complement(用作介词宾语的副词)
- adverbial
- adverbial
- adverbial
- adverbial
- adverbial
- adverbial fronting
- adverbial fronting(句首状语)
- adverbial fronting(句首状语)
- adverbial nouns(用作状语的名词)
- adverbial of cause(原因状语)
- adverbial of concession(让步状语)
- adverbial of condition(条件状语)
- adverbial of reason
- adverbial or predicative (subject complement)(状语还是表语?)
- adversary/opponent
- advice/advices
- advice/advise
- ad visable
- advise/ask/tell/request/persuade/forbid
- affect/effect