With so many companies competing for consumers' attention, price competition was intense and profit margins thin or nonexistent.profit margins 后面是否省略了were?
Gay rights activist Larry Kramer has long speculated that Lincoln was gay, claiming in 1999 that he'd discovered Lincoln's love letters to
onetime roommate Joshua Speed这个为什么时间状语放到了claim后面,为什么that不是修饰1999,而是宾语从句?
资料上有这样的正误句子:他有必要参加这次会议。误:He is necessary to attend the meeting.正:It is necessary for him to attend the meeting.原因是:necessary 这个形容词不能用“人”作主语。请问老师,这个解释有道理吗?