I don't know _____ Lucy will go to Shanghai ______ the weather is fine.A.whether;whetherB.whether;if C.if;untilD.if;whether

I don't know when l shall start the work.(用动词不定式改写）I don't know when _____ _____ the work. I don't like you l _____ L don't know. l don t know I don't know what we will do next.(改为同义句)I don't know _____ _____ _____ next. I don't know whom I should ask(改为同义句）I don't know whom _____ _____. 改为同义句：I don’t know what I should buy her.I don't know _____ _____ buy her. 英语翻译I don't know _____ ______ _____next. I don't know what _____（eat） for lunch I don't know which sweater _____(choose) I don,t know which one _____ （choose) I don't know which watch _____(choose). I don't know why he _____(like) elephants. I don't know. What would happen if I don't know anyone?=_____ _____ I don't know anyone? What does he like wearing I don't know.(合为一句) I don't know _____ _____ ______. I couldn't catch your heart,I don't know your heart?I don't know that I don't know what good,I l翻译下,急. I don't know what shuold I do 的同义句是什么?I don't know _____ _______ _________