Sir, do you have anything _____ this afternoon? If there is nothing to do, I wonder if I can askfor a leave.[ ]

I like the little girl, so I tried to help ______.

Throughout my entire life, I’ve had my brother trying to beat me at everything I do. It has been a(n) ______ positive force.

Many tourists ________to the Great Wall every year.—Yes, that’s true.

if I sicence,and not literature then, I would be able to give you more help.