11.(A). Martha is seven years old.

　　(B). Martha has an older sister.

　　(C). Martha has two older daughters.

　　(D). Martha is twice as old as her daughter.

　　12.(A). I have rarely seen such strange clowns.

　　(B). This house has seldom been so crowded.

　　(C). I don’t feel at home in crowds.

　　(D). Such a big crowd should be housed somewhere else.

　　答案：

　　BB

　　音频文本:

　　11. Martha is the second oldest daughter in the family.

　　12. Rarely has there been such a crowd in this house.