Dùng đúng thời , dạng của động từ cho trong ngoặc 
​ Nowadays , a lot of important inventions (1- carry out) by scientists (2- work) for large industrial frims . However , there (3- be) still opportunities for other people (4- invent) various things . In britain , there is a weekly TV program which ( 5 - attempt) to show all the devices which people (6- invent) recently . The people (7-organize)the program receive information about 700 inventions per year. New ideas can (8-develop ) by private inventors . However , it is important (9- consider ) these questions : Will it work ? Will it+10- want)? Is it new ?