lesson 2 is _ most difficult lesson in Book II,but it isn`t _ most difficult lesson in it里面的a和the .请问是怎么区分开的.就是什么情况下用a 什么情况下用the .

lesson 2 is _ most difficult lesson in Book II,but it isn`t _ most difficult lesson in it lesson 2 is _ most difficult lesson in Book II,but it isn`t _ most difficult lesson in it里面的a和the .请问是怎么区分开的.就是什么情况下用a 什么情况下用the . _________ is the most different of allA.Exercise One B The Exercise OneC.Exercise First D,First Lesson Lesson Lesson Three is __ most difftcult lesson, but it isn't __ most difficult lesson in Book Two.A.a;a B.a;the C. the;the D.the;a 挑错Lesson Three is the most difficult lesson,but it isn't the most difficult lesson in Book Four.Lesson Three is the most difficult lesson,but it isn't the most difficult lesson in Book Four.挑错并讲解 Which lesson do you think is the most difficult是什么意思? 求love is the most important lesson of all 英语口语对话love is the most important lesson of all Lesson Five is the most difficult lesson in Book Eleven.Lesson Five is the most difficult lesson in Book Eleven._____ _____ ______ is more difficult than Lesson Five in Book Eleven.同义句转换 I think -- is very easy.A lesson Eleven B Eleventh lesson C the Eleven lesson D Eleven Lesson ( ) is very difficuit.A.Lesson fifth B.The lesson fifth C.Five lesson D.The fifth lesson请说明理由 _____ is very interesting A.Lesson fifth B.The fifth lesson C.Fifth lesson D.The lesson fifth —— is very difficuit.A.Lesson fifth B.The lesson fifth C.Five lesson D.The fifth lesson lesson 5 is （）most difficult lesson,but it isn't（）most difficult lesson in book one.在括号内填入冠词,并说明理由, 初中英语求问Terry,which lesson do you think is the most difficult in ____?—Well,I think that ____ is.A.Book Three; Lesson Eight B.the book three; the eighth lessonC.the third book; the eighth lesson D.the third book; eighth lesson为什么选 改错Neither John and(A) his father was able to wake up(B) early enough(C) to catch(D) the morning train.Lesson Three is the(A) most difficult lesson,but(B) it isn’t the(C) most difficult lesson in(D) Book Four.Mary found it difficult(A) to talk c _____ is very difficult.[ ] A.Lesson fifth_____ is very difficult.[ ]A.Lesson fifth B.The lesson fifthC.Fire lesson D.The fifth lesson This lesson is the most difficult in the book.(改写句子,句意不变）This lesson is------difficult than ------other lesson in the book.