I don't know how ___________it in English.A. speak B. to speak C. say D. to say B 和D该选哪一个啊?

I really don't know how I can do it well 改同义句 I really don't know how ___ ___ it well I don't know how to deal with the problems.(同义句转换)I don't know ___ ___ ___ deal with the problems. I don't know how to deal with the problem改为同义句?I don't know how to deal with the problem.I don't know ___ ___ ___ with the problem. I don't know how to i don't know how to I don't know how to learn it well(改为同义句）I don't know ___ ___ ___learn it well i don't know how i could repair the bike.（同义句） i don't know ___ ___repair the bike 根据汉语完成句子 同义句转换：I don't know how to work out the math problem.I don't know ___ ___ ___ ___ ___ the math problemI don't know what to say.I don't know what ___ ___ say.根据汉语完成句子1.这是成 how to play basketball?I don't know.who know? 同义句转换：I don’t know where I can go.I don’t know ___ ___ ___. sorry i don,t know what i can do next sorry i don't know ___ ___ ___ next I don't know=I am___ ___ i don't know how to do it句型转换i don't know[ ][ ][ ]do. i don't know how与 i don't know why有什么区别? i don't know how i feel的中文 I don't know how can I ask questions? 英语翻译i don't think i know how.. I don't know.Do it how can i