Question

Упражнение 1, только обязательно по тексту
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Answer 1

Exercise 1.

1 several main systems

2 which join them

3 the main function

4 with all the necessary means

5 are carried by the blood stream

6 the air passages leading to them

7 where it can enter the blood stream

8 convey the urine away from the kidneys

9 until it is discharged

10 produce regulatory substances