GIÚP MIK VỚI!!! ĐANG GẤP
11. Bell demonstrated his invention to the public at countless __________________ (exhibit)
12. Turn off the lights when we are out to save _______________________. (electric)
13. Michael Faraday made a lot of _________________ in the field of electricity. (invent)
14. I can't move this piano without your _______________________. (assist)
15. They get two ____________________ of mail a day. (deliver)
16. One of the _________________________ was come from France. (demonstrate)
17. He broke the vase because of his ____________________. (care)
18. He was a talented ___________________ when he was young. (music)
19. Her main _______________________ in life are music and painting. (interest)
20. I think we’re all in ____________________ that something must be done about the problem. (agree)