It makes _______ big difference to keep calm when giving _______ first aid.
| A．a, / | B．/, the | C．a, the | D．/,a |
Jim is ______ person, and everyone is willing to be ______ with him.
| A．so kind a, friends | B．so a kind, friends |
| C．so kind a, friend | D．so a kind, friend |
By all _______, you must try every _______ to help him.
| A．mean, mean | B．means, means |
| C．means, mean | D．mean, means |
In fact, _______ one cause that leads to the problem.
| A．cattle is | B．cattle are |
| C．cattles are | D．the cattles are |
She is not a competent driver and can’t cope with driving in _______.
| A．heavy traffic | B．heavy traffics |
| C．crowded traffic | D．crowded traffics |
“Why couldn’t they meet us at five o’clock?” “Because they were delayed by ________.”
| A．heavy traffic | B．heavy traffics |
| C．crowded traffic | D．crowded traffics |