Unit 2This is my sister,Section A (3a3c,一、用方框中所给单词的适当形式填空。 1Are these your_? 2Her grandparents _in Beijing. 3Are _ your rulers over there? No, they arent. 4Mike and Frank are my _ 5Hi, _ are my brother and sister,parents,are,those,friends,these,二、单项选择。 6Is Mary your sister? _ AYes, it is BYes, he is CYes, she is DYes, I am 7_ are those? They are my friends. AWho BWhos CWhore DWhats,C,A,8Your fathers father is your _ Afather Bmother Cgrandfathe