What is the main topic of the passage? A.the life cycle of the cicadas B.The reproductive behavior of cicadas C.The aria in which cicadas live D.The period in which cicadas live
Đáp án đúng: B Giải chi tiết:Đáp án là B. Dựa vào những ý cuối cùng của bài: When they emerge, they transform into adult, reproduce, and then die. How they count the years until they emerge from the ground no one can say. Their purpose above ground is to reproduce.