Every summer night, a cluster of fireflies appears around a river on Zijin mountain in Nanjing, Jiangsu province. Thousands of fireflies dance in the air, looking like countless stars in the sky. It is said the glowing scenery will only last about a month, and it is attracting many people who want to visit and enjoy the view. Experts said fireflies are very sensitive, so visitors need to turn off strong lights and keep their voices down.

Fireflies glow in the forest. [Photo/IC]

How long will the glowing scenery last?

A. About one month

B. Half a month

C. Two months

（中國(guó)日?qǐng)?bào)網(wǎng)英語(yǔ)點(diǎn)津 Helen 編輯）