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21.Each sentence has 2 mistakes. Find and correct them.
1. Actually, use social media is one of the most helpful ways for overseas students to keep touch with their families.
2. Most of visitor who knows nothing about English face a problem of language barriers.
3. Thank to technological progress, classrooms are equipped with wireless TVs which help students easily interact the teacher.
4. The government’s concern is types of new medicine and advanced medicine techniques for uncurable diseases.
5. Gifted students in numerous universities will soon became great scientists, physicists, chemists, conservationists and software developers in the near future.
6. People’s living conditions has improved significantly due of the global economic development.
7. Both of US and Russia are always the leading nations in the field of space explorers.
8. Science and technological are the keys to developments in many fields and have enormous effects to people’s lives.
9. We decided giving her an urgent call. Luckily, we could get though.
10. Some conservationist fear that many wild animals and plants may disappear permanent in 20 years.
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Sinh Học lớp 12
