She ____ know the answer ,but I'm not sure .A.maybe B.may为什么选B不选A,请详解,

She doesn't know when she can arrive to the airport改为同义句She doesn't know when she can arrive to the airport.She doesn't know ____ ____ ____ at the airport. 初中宾语从句 同义句转换She wants to know how she can use the digital camera She wants to know ____ ____ use the digital camera She ____ _____ _____the shopping centre.1-12:00But she doesn't know the way> She doesn't know when she can arrive to the airport同义句She doesn't know when she can arrive to the airport.She doesn't know ____ ____ arrive at the airport She looks pale because she had an ____(operate) on the stomach. he wants to know what she ____（think）of the weather in Chengdu She seems to know nothing about the accident.She ____ been here.(can't have,mustn't have).二选一 we should remember the new words同义句we should __ te new words___ ___.she doesn't know she should say改为简单句she doesn't know ____ ____ ____ l know she is an honest girl,____ ____?反义疑问句,要准确!怎么判断这样的题，解题思路是什么？ where is MARY?she ____ in the cinema an hour agosaw sees is seen was been The face that she saw was ____ of an old man 为什么填THAT Mrs Green is ____ Australian but now she is in the Beijing.填a还是an 1.Could you tell me ____ answer to this problem?I can't work it out myself.A.an B.the C.不填2.He ____ less time reading stories about film stars than before.A.takes B.spends3.-How do you know that she likes singing -I often hear her ____ after clas 选择适当形式填空1.Can you come with ____(I).2.The ____(pen) on the desk are hers.3.Mary is an ____(America) girl.4.She wanted ____(buy) a new pen.5.-____ she ____(teach) Maths in a school?-No,she ____ (do)6.She ____(be)born in shanghai.7.The Do you know honest girl in Class 3- Do you know _______ honest girl in Class 　　- Yes.She is _______ excellent player on our volleyball team.　　A.a; an B.the; an C.an; the D.the; the The villagers don't know ____elephant is ____ useful animal.A the...anB a...aC a...theD an...a请说明理由我认为是an...the ____ ____ （有）any ______(图书馆) in your city?Yes,___ ___._____ Amy know the ____ ____（交通规则）?No,she ____.She usually _____（走路) to home.=She usually _____ _____ on foot.____ ____ ____（弹钢琴）is ____ _____（萨拉的 do you know ___ woman in red yes,she's a professor of ___ university.A.the;a B.a; an C.the; an D./;the