Some young people these days just ________ go out of their homes to contact the real world.
His younger sister is often made to cry by him, but this time she made him ______.
Most of us think ______ important to know how to get well along with others.
More and more foreigners are working in China, ______?
The day before yesterday, I ______ one of my old friends in the street.
The girl often helps her best friend, ______ is not good at English. To their delight, his English is improving day by day.