要解释Don't download anything unless you make sure ______.Don't download anything unless you make sure ______.[ ]A.where it is fromB.where it would be from C.where is it from D.where had it been from

要解释Don't download anything unless you make sure ______.Don't download anything unless you make sure ______.[ ]A.where it is fromB.where it would be from C.where is it from D.where had it been from can't download CIientUpdate. can't download version.txt download Some people don't know the courtesies due an old man.怎么解释due 做什么成分? Don't be such an asshole! don't think of an elephant 翻译 If you don't have an iPhone 求解 can't connect auto-download sever 解释 don't是什么意思和用法 If you don't have an ID card ,you can't ( )the building A,enter into B,go in C,come in D, enter求解释 解释下英文 If you will disappearIf you will disappear, please don't forget,we have an appoint,for one century... efficient和effective区别I don't think that is an ___ method of teaching math.A.efficientB.effective选哪一个?请给出具体解释, I can't type chinese word?Where can download chinese wording?Just format my computer few weeks ago.Now can't type chinese word cause don't have the programme.Any1 can help?> wHY don't you __(visit)your parents?用适当形式填空.要解释 The longest day has an end!don't give up and don't give in lingling and hanmei don't have an fnglish lesson today. they don't believe in the power of an MBA