1. One disadvantage of robots is its high cost of the __product (sản phẩm )___. (produce)
2. Robots are being used in both__industrial ( công nghiệp )__ manufacturing and the__medical ( y tế )__ field. (industry -
medicine)
3. There is no__technical ( adj/ kĩ thuật )_ reason why Japan will not be able to make progress in robotics.
(technology)
4. The key to YouTube’s success is the___ability ( khả năng )___ for anyone from anywhere in the world to
broadcast themselves for free. (able)
5. Due to the___development ( sự phát triển )___ in the science and technology, impossible things have become
possible. (develop)
6. Robots increase worker___safety ( sự an toàn )____ by preventing accidents since humans are not
performing____risky( rủi ro )__ jobs. (safe - risk)
7. As a_____scientist ( nhà khoa học )__ (science), Professor Tran Dai Nghia set an example as a true
researcher (research) who devoted himself to the (science) career.
8. Hellen isn’t a great___admiration ( sự ngưỡng mộ )____ of biotechnology. (admire)
9. Paul’s uncle has worked as a__conservator ( người bảo quản )_____ for twelve years. (conservation)

Thì quá khứ đơn dùng để diễn tả một hành động, sự việc diễn ra và kết thúc trong quá khứ