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Use the left mouse button to open them up one to one  (Еще не оценили) Loading ...Понравилось? Поделись с подругами! Ссылка (просто скопируй и вставь в дневник): |
It is time for the math exam. You will have just 1 minute to answer as many questions as possible....
Take an arithmetic test to improve your math and exercise your brain. How many simple math operations can you solve in one minute?...
Play the piano using your mouse or your computer;s keyboard. As you play the piano, you;ll see the wave forms as well as hear them. The piano can also...
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