It‘s uncertain () the experiment is worth doing. A.if B.that

It‘s uncertain () the experiment is worth doing. A.if B.that It's uncertain ______ the experiment is worth doing. It's worth much ()is worth(c).A.to do that,to do B doing tha If a job is worth doing,it's worth doing well翻译成中文谚语是什么? 英语选择和填空The questions is A whether is it worth doing B that i If a thing is worth doing it isworth doing well I wonder______ it is worth doing 填that 还是if the question is（ that if ）it is worth doing that if 为什么不能用在这 If a thing is worth doing,it is worth doing well.是谁说的? If a thing is worth doing ,it is worth doing well.什么意思 If a thing is worth doing it is worth doing well If a thing is worth doing it is worth doing well 这段英语的中文意思