3. Переведите предложения, обращая внимание на тип усло- вия. 1. If I am not too busy, I shall go to the concert. 2. I should be very glad, if I found my book. 3. If you rang me up, I shouldn't worry. 4. If I had learned my lesson yesterday, I should have got a good mark. 5. If you gave me your address, I should write you a letter. 6. If my friend comes to see me, I shall be very glad.