为什么要选B,为什么不选A?Everyone in the USA is_____for presents.

为什么要选B,为什么不选A?Everyone in the USA is_____for presents. 为什么是in the USA 为什么in America不加the而in the USA加the 为什么"the USA"要加“the”? 完形填空 Everyone knows that a ____ food in the USA is the hambu English is spoken as___first language in the USA.练习里填a 为什么不是 He lives in New York ,the USA .USA前为什么加the not everyone in the usa likes soccer 改为同义句 almost everyone in the USA is s---- for present Not everyone in the USA likes soccer 同义句怎么说 when did she ___ the USA?为什么不能选travel,而要用tour 为什么选B不选A?