While travelling in a strange place, you’d better ____ the local people and follow their customs（习俗）.

One day, when I was walking in the street, someone dropped a pie from a window above, andit _______ missed landing on my head[ ]

The audience waited in________silence while their aged speaker searched among his notes for the figures he could not remember.

My English teacher visited Australialast summer.—Which city did he visit—

Running a company is not ______ a matter of hiring people —-they also need to be trained