However weak we are, we can still do something against the powerful nature as long as we are ______ prepared.

 With April 18’s railway speedup, highway and air transport will have to compete with __________ service for passengers. 

Passengers will likely face the usual struggle to get their tickets during festivals, __________ at railway stations, where long lines are expected. 

Contrary to popular belief, taking a walk immediately after meals doesn’t _______ do good to our health.

We must behave ____ at a formal table.