In ____ accident _____ knowledge of first aid can make _____ real difference.
| A．an; a; a | B．the; a; the | C．an; the; 不填 | D．a; a; 不填 |
chemistry
| A．machine | B．touch | C．school | D．kitchen |
unite
| A．policeman | B．inform | C．terrible | D．tidy |
improve
| A．fond | B．lose | C．women | D．motor |
The number of traffic accidents caused by drinking is ____ as the number of those caused by non-drinking driving.
| A．as twice many | B．many as twice |
| C．as twice large | D．twice as large |
Don't ______ any excuse. You'd better apologize for being late.
| A．take up | B．look up | C．make up | D．put up |