Unit 3sisterThis is my
Is this a / an ...?Yes, it is.No, it isn't.It's a/an
Is this a / an .? Yes, it is. No, it isn’t.It’s a/an
Is this a / an ...?Yes, it is.No, it isn't.It's a/an...HISTORIANSHISTORIANHISTORYHISTORYOFLOFTHE·WORLDTHEWORUIVOLIVOL-nEGYPTL-PEREAND1SREMESOPOTANINDIA-PHASLAThese are two dictionaries
Is this a / an .? Yes, it is. No, it isn’t.It’s a/an. These are two dictionaries
motherThis is hismother.Liu XingfatherThis is his father
mother father This is his mother. This is his father. Liu Xing
parentsThese are Liu Xing'ssparents
parents These are Liu Xing’s parents