Question

The story shows that _______ knowledge of _______ first aid can make ______ real difference.

A．the; the; /

B．a; /; a

C．/; the; a

D．a; /; /

Answer 1

B

这题考查冠词的用法：第一空填a，a knowledge of是“知道,了解”，第二空不填，是泛指“急救”，第三空填a，make a real difference.是固定词组“真的有影响”。