为什么答案是how important it is?

为什么答案是how important it is? no one knows exactly ___ this important discovery was made.A.that B.that how and when .C.how D.how or when我觉得应该是 how and when,可答案却是D.为什么用or _____ the students,it is very important to know how to study.A To B For 答案是For,为什么To 不行 Do you understand how important knowing English is?为什么动词是ING形式? not until this term__to realize how important this subject is to his future career as a diplomatA.he beganB.did he beginC.has he begunD.thath he has begun选什么?为什么?答案是B为什么？ Why is the letter E so important?为什么答案是It's the beginning of everything. More __,people have known they must protect their living environment.(important)为什么答案是importantly we show how important it is to keep learning .为什么important remind us how important it is为什么us后面不用of,how important it is是什么短语? important water is in our life!How important water is in our life!中为什么要用how,而不用what呢,那么如用what,该句子是怎样的 2道200分啊!1.___ important news is in our daily life!A.How B.How an C.What D.What an答案是选C,但我认为是A,2._____hope_____a higher salary,he works harder than beforeA.with,by B.with,of C.with,for D.on,of那为什么B错?但what后面不 one of the most important things I've learned is how much there is to learn,and how much I don't yet know.为什么how much之前的是is而不是are呢?不是并列的两个吗? Fitness is important in sport,but of at least___importance are skills.A.fairB.reasonableC.equal为什么答案是c? i found ----important to speak English as much as possible答案是it,但为什么不是it is what important advice you've given me 为什么用what里面 you've given me 是从句还是什么的what how的区别我已经知道了 how important is keeping healthy to you这里的is是干什么的,为什么感觉这个语序好奇怪啊还有这里的to可以改为for吗 Please tell me its _____(important) 答案上是importance,我觉得是important how important it is 还是how important is it