Question

In order to have _____ better understanding of the accident, the three witnesses were called for _____ second meeting．

A．a; a

B．the; a

C．a; 不填

D．不填; the

Answer 1

A

have a better understanding of“对…有很好的了解”；序数词前用不定冠词表示“再一次、又一次”不表顺序。所以答案为A。