Most of us would rather send e-mail as it has _____ of the troubles of sending letters via the post office.
Although the price of the gas ______, many people still plan to buy private cars.
She always looks sad, _____ makes people feel sorry for her.
---I have passed the popular election of the Olympics Maths Competition. ---______.You are always excellent in maths.
The old couple don't want to _______ their son and still live in the countryside although their son urged them to move to the city and live with his family several times.
He is very angry because the bag _____ on the net a month ago hasn't arrived yet.