1.____ is in the room , are they?用（something,anything,nothing,everything,anybody,everybody,somebodt,nobody)填空2.We tired ____ ,but ____ worked.单项选择1-Everyone is here today, _______?A.isn't it B.isn't he C.are they D.isn't everyone2Everything goes well,_______?A. is it B.isn't it C. do they D. doesn't it

1. Nobody
2. everything ; nothing
1. A(it 指代Everyone is here一事。)
2. D(go为实意动词，反义应用do)

1.nobody is in the room ,are they?反义疑问句的回答是肯定的,所以前面一部分用否定的,从nothing和nobody中选,在房间里选人更适合.
2.We tired everything ,but nothing worked.后面填nothing是肯定的,前面为什么填everything而不填anything呢?everything强调的是整体,所有,一切,而anything强调的是个体,每一个.所以填everything更好,更能体现我们一切能做的都做了,尽力了.
1.选择B.isn't he.主语不定代词指的是人时,附加疑问句主语在庄重正式的语境中才用he的,一般回答不定代词时都用 aren't they,但本题中只有isn't he.
2.选D.主语不定代词指代物时,附加疑问句主语用it.