1. If you go ___ doing that and you'll end ____ in serious trouble.
A.on - with. B.on - up. C.off - with. D.out - up
2. They arr trying to save the animals ____ extinction.
A.on. B.to. C.from. D.for
3. They didn't see each other again ___ the fall.
A.since. B.in. C.from. D.until
4.____ari is one of the many problems we have to solve
A.pure. B.polluted. C.fresh. D.pleasant
5. People have ___ this beach with a lot of trash
A.spoiled. B.cleaned. C.collected. D.pleasant
Giúp với mai mình thi rồi
Loga
Sinh Học lớp 12
