I don’t know why ___________.
A: my sister Mary was laughing
B: did my sister Mary laugh
C: my sister Mary laughing
D: was my sister Mary laughing
A: my sister Mary was laughing
B: did my sister Mary laugh
C: my sister Mary laughing
D: was my sister Mary laughing
举一反三
- This is my () dictionary. A: sister Mary B: sister’s Mary C: sister Mary’s D: sister’s Mary’s
- This is my dress. That one is ______________. A: Mary B: Mary's C: sister D: mother
- 4. My elder sister, Mary, who lives in London, is a doctor.
- Mary is an old friend of _______. A: my sister’s B: my siste C: my sisters D: my sistter’s ones
- The girl talking to Mary is a friend of ______． A: Mary's sister B: Mary sister's C: Mary's sister's D: sister of Mary's