The old man needs our help, ______ ?

The old man needs our help, ______ ?

1. A.
   needn’t he
2. B.
   need he
3. C.
   doesn’t he
4. D.
   does he

The old man needs at most five hours' sleep a night, but he ________ for over seven hours tonight．

1. A.
   has gone to bed
2. B.
   has slept
3. C.
   has gone to sleep
4. D.
   has fallen asleep

The old man needs our help, ______ ?