Rejea kifungu cha chini na kisha jibu swali baadaye katika lugha sawa na kifungu:  Passage: Taihu, literally the Great Lake, also known as Lake Tai or Lake Taihu, rest in the Yangtze Delta plain, is one of the largest freshwater lakes in China. Taihu, literally the Great Lake, also known as Lake Tai or Lake Taihu, rest in the Yangtze Delta plain, is one of the largest freshwater lakes in China. Ziwa ni mali ya Jiangsu na pwani ya kusini fomu yake mpaka na Zhejiang. Na eneo la 2,250 kilomita za mraba (869 sq mi) na kina cha wastani wa mita 2, ni ziwa la tatu kwa ukubwa wa maji safi nchini China, baada ya Poyang na Dongting. Ziwa hilo lina visiwa 90 hivi, ambavyo vina ukubwa wa mita chache za mraba hadi kilometa kadhaa za mraba.  Swali: Ziwa hilo lina visiwa vingapi?
90