Закончите предложения используя условное предложение нулевого типа. (делаем все)

Question

Закончите предложения используя условное предложение нулевого типа. (делаем все)

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Answer 1

If you send an e-mail it's free
It's dangerous if you not wear a seatbelt
If you have an injection, it's not hurts usually
If you don't water plants and flowers they die 
If the sea is not calm it's not safe to swim

Comments

if you don't* wear