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 smallest bird in the world is the 2.3-inch hummingbird. It counteracts the forces of gravity by flapping its wings over 200 times per second. .. More >>