Mr．Black is willing to do ______________ Mrs．Black tells him to do．

There is no need ______ because Mr. Smithis still sleeping.

I ______ the poor rabbit, but I didn’t have the right drugs with me at that moment.

I know you have got a smooth tongue, so don’t talk me _____ buying it[ ]

Who can help me carry the heavy box—I think David is _______ to do it. But the door is ______for him to go through.