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.
Science Facts
If you are trapped in snow in an avalanche, it's impossible to tell which way is up (and so which way to dig yourself out). Urinate and see which direction the yellow stain spreads – gravity will pull the urine down. .. More >>