17. Drunk driving, which was once a (   ) occurrence, is now under control. 

• A、general

• B、frequent

• C、normal

• D、particular

55 (   )

49. In the sentence "Everyone in Bill's family has been bothered by the new comer", "bother" means (   ) . 

• A、scare

• B、cause trouble to

• C、worry

• D、make sorry