A.()till she was thirty.……

填空题The important of these（）（vary）according to the nature of one’s life－style.

填空题Each actor and actress（）（be）invited.

单项选择题he horse（）and took the lead in the race.

A.pulled away
B.pulled up
C.pulled down
D.pulled back

单项选择题The number of these families has increased（）40 percent in the past ten years.

A.to
B.up
C.by

单项选择题Which of the following statements about The Scarlet Letter is NOT true?