It’s impolite ___ you to ask one’s private affairs.
____ private cars are bringing us convenience, they may also cause more traffic accidents and pollution.
—I'm afraid I can’t do well in the job interview. Could you give me some advice?—______ Have confidence in yourself.
He ____enough time, otherwise he could have done it better.
---Mary, let’s go to the bookshop this weekend. Will you be ?---Sorry, but I’m going to visit my uncle in the countryside.
---Volunteering is getting popular in China.---Indeed. More people are now aware that helping others benefits themselves a lot.