—So hard _____ in the past few months that he has made great progress in English.—I can see that; only a few mistakes _____ in the exam.
It was rude ________ you to stare at a foreigner when you meet him for the first time.
________ we meet the lawyer, he always wears a suit.
My parents always let me have my own _______ of living.
After careful thought, he decided to _______.
To write his paper, he tried hard to collect _______ information as he could.