Would you _______ a drink?—No, thanks．I have given up drinking.

In America．a friend’s inviting you to a restaurant doesn’t mean that he or she will pay for the mealyou are told in advance

I should not have laughed if I _________ you wereserious.

Boys, would you mind not playing basketballhere–,Mr.Li.

e of the continuous bad weather, the buildingwork of the bridge over the Yangtze River is far behind