这句英文里的the可以省略吗?

这句定语从句的that可以省略吗? 这句中的that可以省略吗 强调句里的It is……that 可以省略吗? the waiter understood that he didn't want tea.这句中的that可以省略吗? 强调句里的that能省略吗? 英语强调句的THAT 可以省略吗, 强调句中的that可以省略吗? Fill in the blanks where( it is ) necessary 为何可以省略括号里的 The school that Peter studied in is in Shanghai.这句话里that可以省略 find the boy was sitting there,句中that 可以省略吗? the man who is standing the counter served me 这句话的关系代词可以省略吗 写了句英文,这句含that的主语从句是否正确,that是否可以省略,求指导!