After　　　seriesofunsuccessfulattempts,hehasfinallypasse...

問題詳情：

 After 　　　 series of unsuccessful attempts, he has finally passed 　　　 driving test. 

A. /;the                B. a; the      C. the; a              D./;a

【回答】

B

知識點：冠詞

題型：選擇題