It is uncertain ______ side effect the medicine will bring about,although about two thousand patients have taken it.A.that B.whatC.how D.whether这题选的是B,如果改成It is uncertain ______ the medicine will bring about side effect...能不能

it's uncertain ______ the experiment is worth doing为什么不能用that 英语翻译No trading when it is uncertain.或者语法错误.希望简洁一点..... ——— is uncertain now.A.where did she put it B.where she put it求语法点. it is beautiful,____ ____ ____ fan it is! life is so peculiar .so uncertain .how little a thing it take to destroy you or save you 意思 It's uncertain ______ the experiment is worth doing.A.if B.that C.how D.whether 否定词缀的词不表否定吗比如说it is uncertain that 的反义疑问句用isnt阿 life is so peculiar .so uncertain .how little a thing it take to destroy you or save you it is uncertain 后用that还是wehther,这两个词分别在什么情况下用? I like ____ .It is ____ .It is ____ .It has ____ .It has ____ . It is fine today.____ ____ ____ it is today! it is uncertain ( ) side effect the medicine will bring about,although about two thousandit is uncertain ( ) side effect the medicine will bring about,although about two thousand patients have taken itthatwhathouwhether 三条英语单选题It is uncertain ____ side effect the medicine will bring about,although about two thousand patients have taken it..A,that B,what C,how D,whether我知道that后加一个陈述句,what可以不用加陈述句.但如何分析这是 三条英语单选题It is uncertain ____ side effect the medicine will bring about,although about two thousand patients have taken it..A,that B,what C,how D,whether答案：B我知道that后加一个陈述句,what可以不用加陈述句. 高中英语主语从句It is uncertain ____ side effect the medicine will bring about,although about two thousand patients have taken it.A.that B.what 不要给我说about后面缺少成分,因为它的成分在前面,是side effect,也就是the med 英语翻译uncertain whether the port to which it is bound can be reached,and prevented by many impediments from returning to that it has quitted it is time ____ ____ lunch