1.Составить во к следующим ответам.
1. I am doing my homework now.
2. They usually do their homework in the evening
3. My mother went shopping last Friday.
4. My friends have been in Italy 2 years ago.
2. Используйте глаголы в скобках в правильной форме.
1. I (has written, wrote, have written)
the letter yesterday.
2. Tamara (has, have) already (cleans, cleaned) the room.
3. I (have done, is doing, am doing) my lessons now.
4. He (has done, have done, did) his exercises till six o’clock.
Объяснение:
1.Составить во к следующим ответам.
1. I am doing my homework now.
2. They usually do their homework in the evening
3. My mother went shopping last Friday.
4. My friends have been in Italy 2 years ago.
2. Используйте глаголы в скобках в правильной форме.
1. I (has written, wrote, have written)
the letter yesterday.
2. Tamara (has, have) already (cleans, cleaned) the room.
3. I (have done, is doing, am doing) my lessons now.
4. He (has done, have done, did) his exercises till six o’clock.
2) -1 целая 1\7*(4\5+19\20)*(6 целых 5\6+4 целых 2\3) = -8/7*(16/20+19/20)*(41/6+14/3) = -8/7*35/20*(41/6+28/6) = -10/5*69/6 = -2*69/6 = -69/3 = -23
3) (6 целых 3\8-2целых 3\4)*(-4)+7\18*9 = (51/8-11/4)*(-4)+7/2 = (51/8-22/8)*(-4)+7/2 = 29/8*(-4)+7/2 = -29/2+7/2 = -22/2 = -11
4) 9 целых 1\6:(4 целых 1\3-8)+24*3\8 = 55/6:(13/3-24/3)+9 = 55/6:(-11/3)+9 = 55/6*(-3/11)+9 = -5/2+9 = 6,5