21. The river runs _____ here, into South China Sea.
Try not to cough more than you can________since it may cause problems to your lungs.
David is ________ animal fur,so he won’t visit anyone who has cats or dogs in the house.
Don’t defend him any more.It’s obvious that he________destroyed the fence of the garden even without apology.
He didn’t selfishly keep for himself the money inherited from his uncle.Instead,he made a________contribution to help the community.
People complain that decisions to approve or deny a permit are often________rather than based on fixed criteria.