I heard that some patients who had undergone laser eye surgery experienced sudden losses of vision, ______?

(2013·亳州模拟)I’m sure you’d rather she went to school by bus, 　　　　?

--_______students are there in your class,Mr Li?  --Fifty.

—Lucy,        do you go to the park?—Three times a week.

— ______ is a ticket to Garden Expo?— It’s about 100 yuan.