Quizzes, tests, exercises and puzzles for English as a Second Language (ESL), English as a foreign language (EFL), Teaching EFL (TEFL), Test of EFL (TOEFL), English for speakers of other languages (ESOL), Teaching ESOL (TESOL), TOEIC.
Fact
The african ostrich is not only the largest bird in the worldit also lays the largest eggs. On average, one egg weighs 2 to 4 pounds. That's equivalent to the weight of 45 normal-sized eggs. .. More >>