At the routine office meeting, the headmaster insisted that the problems _________ paid special attention to.
| A．referred to being | B．referred to be | C．refer to being | D．refer to be |
She looks forward every spring to ____ the flower-lined garden.
| A．visit | B．paying a visit | C．walk in | D．walking in |
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 |