Hurry up! Flight 4406        off at 18:40.

— The room is so dirty. _____ we clean it ?— Of course.  

Remember me to your parents when you _____ them.

(2013·高考陕西卷)On Monday mornings it usually________me an hour to drive to work although the actual distance is only 20 miles.

 Customers are asked to make sure that they______ the right change (零钱) before leaving the shop.