I want to know the way which you learn new words.改错怎么改：which改为 how,还是which前加in ,还是去掉which?还有how 能引导定语从句吗

I don’t know w hether I really love you,but I know I cannot lose you.If the earth is going to be destroyed I want to tell you that you are the only one I want to see I don't know the w[ ] to the library. Did you pick up the paper for me today?I really want to check the job vacancies.W:I know,it’s over there.翻译 I want to let the world know 的意思, I want to know ____ it is the right answer. I want to know、what's the matter?3Q I want to know when he -----(finish)the work. I want to know more d____ about the novel I want to know what Bill t________of the basketball game. i want to know how the dish tastes good翻译 I want to know the someone who is you miss 填空:I want to know ____ about the old man. I want to know more! I want to know why I want to know ______ I want to know you. i dont want to know I want to know you