we can't stop the...... of plants and animals(appear)
it is....to ride a motorbike in VietNam without a helmet(possibility)
My son's study is....He often gets bad marks at school(worry)
Man is...doing harm to the environmetnt(constancy)
A lot of money has been spent on...of the animals natural environment(reconstruct)
some people think that zoos are places where animals are...against their will(prison)
the new law to..wildlife in VietNam is going to be passed (conservation)
water ...has become more and more serious due to the nuclear test in the seas and oceans (pollute)
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Sinh Học lớp 12
