Chia động từ trong ngoặc - câu điều kiện: a) If people (not throw) don't throw garbage, there (not be) will not be most enviroment pollution; b) If she (be) at the younger sister's age, she (look) much younger

Chia động từ trong ngoặc:
a) If people (not throw) don't throw garbage, there (not be) will not be most enviroment pollution
b) If she (be) at the younger sister's age, she (look) much younger
c) Fish (die) if they (live) on the ground
d) I (can fly) if I (have) wings