1. The teacher divided class ________four groups.
2. He provide us ________a lot of useful information.
3. The ground is covered ________trash. You should clear ________all the trash.
4. Raw sewage is pumped directly ________the sea.
5. They are trying to save the animals ________extinction.
6. The world will end ________like a second-hand junk-yard.
7. I am looking forward ________hearing from you.
8. Don’t throw trash ________the water.
Loga
Sinh Học lớp 12
