Put 5 types of questions: technology makes life easier. put 5 types of questions: radio broadcasts news. put 5 types of questions: they started researching this problem yesterday. put 5 types of questions: sciences contributed much to modern technology.

1) does technology make life easier? does technology make life easier or more difficult? technology makes life easier, doesn't it? what makes life easier? what does technology make easier?   2) does radio broadcast news? does radio broadcast news or music? radio broadcasts news, doesn’t it? what broadcasts news? what does radio broadcast?   3) did they start researching this problem yesterday? did they start researching this problem yesterday or last month? they started researching this problem yesterday, didn't they? who started researching this problem yesterday? when did they start researching this problem?   4) did sciences contribute much to modern technology? did sciences contributed much or little to modern technology? sciences contributed much to modern technology, didn't they? what contributed much to modern technology? where did sciences contribute much to?

1. Couldn’t
2. Can
3. Couldn’t
4. Was able to
5. Couldn’t
6. Might
7. Might
8. Might
9. Could
10. Can