Facts and Figures - Unit 1: Animal Lesson 4: The Hippopotamus

Reading & Vocabulary Development 1: Facts & Figures is a best­ selling beginning reading skills text designed for students of English as a second or foreign language who have a basic vocab­ ulary in English of about 300 words. This text teaches about 500 more words. It also teaches the reading skills of comprehension, finding the main idea, and using the context to understand vo­cabulary items. Facts & Figures is one in a series of reading skills texts. The complete series has been designed to meet the needs of students from the beginning to the high intermediate levels and includes the following:
Reading & Vocabulary Development 1: Facts & Figures Reading & Vocabulary Development 2: Thoughts & Notions Reading & Vocabulary Development 3: Cause & Effect Reading & Vocabulary Development 4: Concepts & Comments.

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where can i see the answers of this book