We arefriendly ______our new classmates.

y countries, government reports,legal papers and most business letters are the main situations _______ Englishis used

Of all the subjects, physics seems to be for me.

The hottest continent, Africa has a lot of resources, ______ are still undeveloped.

Why did the police ________ the crowd? — Because the president’s car _________ in the street. [ ]