We had tried everything to improve their living conditions,but it made little .
| A．good | B．use |
| C．result | D．difference |
It is not socially ______ for parents to leave children unattended at that age.
| A．accessible | B．acceptable | C．adorable | D．adaptable |
The best way to deal with complex problems is to _______ them _____ into smaller problems.
| A．break; down | B．break; in | C．break; out | D．break; through |
We were sad to learn that several students were by a car yesterday.
| A．hit out | B．knocked over |
| C．run across | D．picked up |
children believe they can succeed, they will never become totally independent．
| A．If | B．Though | C．Unless | D．When |
The climate conference was attended by 11,000 people, it the largest UN gathering ever held.
| A．making | B．to make | C．made | D．to be making |