No one has yet succeeded in explaining the ___ of how life began.A.problem;B cause ;C,reason D,puzzle,why?

翻译：No one has yet been able to trace the author of the poem (一) 单选题 1.No one has yet succeeded in explaining the _________ of how life began (A) logic (B) No one has yet succeeded in explaining the ___ of how life began.A.problemB.causeC.puzzleD.logic What animal has no wings yet will fly? What animal has no wings yet will fly?求谜底 WHAT ANIMAL HAS NO WINGS YET WILL FLY? 3、What animal has no wings yet will fly?为什么？ what animais has no wings yet will fly ___of them has arrived yet.So___has come here on time.A.Nobody;none B.No one;nobody C.None;everyone D.None;none (一) 单选题 1.No one has yet succeeded in explaining the _________ of how life began (A) logic (B)急 No one has yet succeeded in explaining the ___ of how life began.A.problem;B cause ;C,reason D,puzzle,why? We have invited ___to the party ,but no one has answered yet?A:somebody B:everybody!我选的是A 但是书上却是B 为什么 No one has _____ been able to trace the author of the poem.A.still B.yet C.already D.just No one has yet succeeded in explaining the (problem?) of how life began.No one has yet succeeded in explaining the () of how life began.选项: a、a. problem b、 b. cause c、 c. puzzle d、 d. logic搞不清楚答案为什么是这个呀，能 -Has he moved to his new house yet? -No,not yet.为什么回答不是-No,he hsn't 翻译：No one has died doing Parkour Has no one been recently?怎么回答 判断对错,写出原因Has he took his medicine yet?No,he hasn't took it yet.