I asked her__if__ she was enjoying her dinner.为什么不能用whether这里的if为什么不能替换成whether?

I asked her__if__ she was enjoying her dinner.为什么不能用whether这里的if为什么不能替换成whether? Yesterday I asked students_____fashion sh()()p i:的音标填空 qin sh拼音i的字 按次序规则下列基团优先次序正确的是A -I > -SH > -Cl > OH B-OH > -SH > -Cl > -IC -I > -Cl > -SH > -OHD-SH >-I > -Cl > -OH 请问这篇文章的名字和作者,出处是哪里?Can I see my baby? the happy new mother asked.Can I see my baby? the happy new mother asked.When the bundle was nestled in her arms and she moved the fold of cloth to look upon his tiny face,sh I asked _____help.填什么? that's all i have got 是哪出错了?Right before the bell rang a teacher walked into my room and asked:Excuse me,do you have any chalk? I looked at my box,opened it and showed her the few pieces that were left inside:Nope,that's all I got... Sh he r______ a few minutes later and looked very unhappy. (根据首字母填单词）she asked if mr.liu ________ already ________(come)back.i am really sorry _________(tell) you that i ________(leave) my homework at home.the rain _________(stop）.sh 英语翻译sh mqb i vk ngwy fhu bm q r měi shí是啥意思 知道读音不知意思的单词 ：pri sh i eit 英语翻译I asked him in the past Last week I asked students about f______. I asked students about fashion.的中文翻译 翻译:She was really happy I asked. Last week I asked students about f______. 英语翻译“I asked her for the questions.”