单选题 The most basic reason why dialects should be preserved is that language helps to ______ a culture.

单选题 The advertisements, along the bridge, have to be done away with, for they sometimes ____ the attention of motorists.

单选题 Don't ____ with her. She's preparing for the final exams.

单选题 While he was talking to me he ____ off a whole bottle of wine.

单选题 Tom was so ____ that he left his keys at home again.

单选题 A great sense of calm came ____ me when I realized that I was no longer responsible for the situation.

单选题 The red curtain has ____ over the years.

单选题 All her children are clever, but the youngest daughter is really ____.

单选题 Unlike marriage or the ties that bind parents and children, friendship is not ____ or regulated by law.