请一定具体解释,杜绝下次再出现错误,所以一定要知道原因,

请一定具体解释,杜绝下次再出现错误,所以一定要知道原因,
 1.Don't  be afraid of ______ other people for help
     A  asked      B  asks      C  asking      D to ask
2.  You _____make a decision right now .You can think about it for a few days
   A can't     B mustn't     C  needn't     D  shouldn't  
3.  The _________ of last month sounds good   (sell)
    They ________with each other about the best place  for a holiday (argument)
改写同义句：
They will go home after they finish their work
They _____   _______ home ______ they finish their work
The light was go poor that no one could write
The light was ____  poor for   _______   to  write
Bill came out of the classroom after he worked out the problem
Bill ________came out of the classroom _______ he worked out the problem
I hope to find the driver as noon as possible
I  hope to find the driver as noon as ________    ________
Has he ever traveled by ferry?     
Has he ever______    _________ a  ferry?