The first time you talk to a stranger, you should try to ______ him about the personal affairs.
The book states that the other two areas_______the two varieties of English differ are spelling and pronunciation .
In that hospital under no circumstances any member of staff___socialize with the patients .
——Excuse me, Professor Smith, I was wondering if I could leave a quarter earlier today. ——____.
We______every day for almost two weeks ,so I’ll need to buy a large backpack to carry my supplies .
Our bad living habits will destroy the earth. Only by changing ____ we live can we save the earth.