— How’s your tour around the North Lake? Is it beautiful?— It ______ be, but it is now heavily polluted.

 It is a common practice in China that the bride at the weeding ________ be dressed in red to ensure good luck. 

If you ______ talk about it with me, please wait till I finish my work at hand.

—What does the sign over there read?—No person        smoke or carry a lighted cigarette, cigar or pipe in this area.

—Could I please use your computer?—             .