请根据要求改写下列句子，每空一词。
My son used to do some reading before going to bed.        (改为一般疑问句)
        your son          to do any reading before going to bed? 
They surfed the Internet to gather some information about the earthquake.
(对划线部分提问)
                 they surf the Internet?
Little children can easily get hurt unless their parents should always keep an eye on them.
(保持句意基本不变)
      should always keep an eye on little children,        they can easily get hurt.
Several articles about memory were written by Jane last month.     (改为主动语态)
                 several articles about memory last month.
“Can you help me repair the bike?” Mary asked Jack.             (改为间接引语)
Mary asked Jack          he          help her repair the bike.