Câu 1. Police are investigating the ................. of a young woman. ( appear ) Câu 2. By recycling used things, we can save ……………resources. (nature) Câu 3. We finished the test …………………….. (excellent) Câu 4. The Y& Y Green Group ……………. a lot of activities every year. (organization) Câu 5. Please get an………………….. form and then fill it out.( apply) Câu 6. The…………….is the air, water, land , animals and plants around us.(environmental) Câu 7. Sarina is only my half-sister because we have ………………. mothers.(differ) Câu 8. The teacher is pleased with the …………. in my study.(improve) Câu 9. Our life is much better with the help of modern…… ….…… (equip) Câu 10. I’m pleased to hear you had an ………. summer vacation. (enjoy) Câu 11. He speaks English ……………. after living abroad for a long time. (natural) Câu 12. She has never ………………. anything like it . (tasty) Câu 13. Our project wouldn’t be…..…. without your kind cooperation. (succeed) Câu 14. It was ……………… of him to offer to pay for us both . (generosity) Câu 15. An ___________ is a home for children whose parents were dead . (orphan)