Put the correct form of Have to

Put the correct form of Have to
 1. Lily__________(not) do the housework because she is sick
 2. I__________take the bus now                                                                                                                         3. My sister__________sned a repost every month
 4. Last year, they__________(not) work on Saturday
 5. __________you__________go to the bed before 10p.m?
 6. Yesterday, he__________stay overnight