Answer:
The sign for "son" is a (mutated) compound of "MALE and BABY." It is abbreviated though. The "male" part of the sign just looks like a salute. You abbreviate the BABY portion of the sign (no rocking). It sort of looks like you are saluting from your forehead to the crook of your left elbow. The left arm sometimes just hangs down during the sign SON or at least is more relaxed than in the sign for baby.
Explanation:
Protect your invention from getting stolen :)
Answer:
1. у меня есть три сестры
2. он занял третье место
3. половина людей ушла
4. мне двадцать лет
5. он празднует свой второй развод
6. понедельник - первый день недели