1、He_to the farm yesterday.A、need go B、needed go C、has to go D、had to go

1、He_to the farm yesterday.A、need go B、needed go C、has to go D、had to go
2、They asked Tom to give him a drink,but he_.A、hadn't B、wan't C、wouldn't D、could
3、He is much richer than what he_.A、would be B、must be C、used to be D、could be
4、The door is still closed.He_the key.A、must have lost B、must lose C、need have lost D、can lost