试一试: Woman: You look worried. Man: I think I forgot ___ at home. Oh no, my keys! 选出那个男人会说的话。 (anything / nothing / something) 答案: something — 他真的忘了一样东西，而且这是肯定句，所以是 something。
否定句和疑问句用 any-
在否定句或疑问句里，我们通常用 any- 开头的词：anything、anyone / anybody、anywhere。主动给别人提供东西时，还是可以用 some-：Would you like something to drink?
I don't know anyone here.
Is there anything to drink?
Not "I don't know someone here." — say "I don't know anyone here.". don't 让句子变成否定句，所以用 anyone。
试一试: Man: What did you buy at the mall? Woman: I didn't buy ___. It was all too expensive. 选出那位女士会说的话。 (anything / something / nothing) 答案: anything — didn't 让句子变成否定句，所以是 anything。
no- 开头的词：不要再加 not
nothing、no one / nobody 和 nowhere 本身就有“不、没有”的意思。动词不要再加 not。
Nobody called me.
Nothing happened.
Not "I don't know nobody." — say "I know nobody. / I don't know anybody.". nobody 本身就有“没有”的意思，所以不要再加 don't。
试一试: Woman: Is the store open? Man: I don't think so. There's ___ inside. 选出那个男人会说的话。 (anybody / nobody / everybody) 答案: nobody — 商店看起来关门了，而且 There's 是肯定的，所以是 nobody。
Not "Everybody are here." — say "Everybody is here.". everybody 后面的动词用单数：is。
试一试: Man: How was the party? Woman: Great! ___ came, even my old teacher. 选出那位女士会说的话。 (Everyone / No one / Anyone) 答案: Everyone — 连她以前的老师都来了，所以是 Everyone。
试一试: Woman: Where should we sit? Man: ___ you like. It's not busy. 选出那个男人会说的话。 (Nowhere / Everywhere / Anywhere) 答案: Anywhere — 哪个座位都可以，所以他说 Anywhere you like。