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 fuzz on a tennis ball is intentionally included as a way to give the ball some definite action when it hits the court. It also slows the flight of the ball through the air. .. More >>