The public transport system in Beijing is very good now, so there _____be any difficulty in traveling around the city.
.______ his homework, he went on to preview the next lesson.
.In 1989 an international law was passed to stop people _____ waste into the sea.
.—— John wants to see you today. —— I would rather he ____ tomorrow instead of today.
.—— Don’t you have a watch? —— But it has gone wrong. They say it’s not worth ______.
.This kind of work ______ great patience, so you should take your time.