The change to some higher color in a leaf is an ______ that it has arrived at a late and perfect maturity.

(单选题)For his daughter’s birthday, Peter is taking her to the new (单选题)Tong Liya is ______ famous actress who acted as a countrywom (单选题)Where’s the passage probably from? (单选题)What can we learn from the passage? (单选题)Why did parents choose to give birth to babies in January 20 (单选题)If you were born in 1989, what may be your zodiac sign? (单选题)What does the author mainly talk about in Paragraph One? (单选题)53.（ ） (单选题)52.（ ） (单选题)51.（ ）