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In business negotiation, an _______ attitude may result in breaking the relationship with our partner while a too frank communication may bring a company into an unfavorable situation. 

As the party was very informal, Jack stood there looking stiff and     in his formal dress.

Hearing the loud noise，the boy looked out of the window,__________.

As a manager, I know my emotions will affect people around me, so I’m going to make a _______ effort to be more cheerful.

It may not be a great suggestion. But before ______one is put forward, we’ll make do with it.

From his ______ look, I could see that he didn't believe what I said.

There was no good news still, and as time went by, he got _______ .

-Are you feeling _______ now?
-Yes, and I feel much happier than ever.

Bill Gates is so _____ that he has given away most of his money to charity.

I am _____ to hear the _____ news that my brother has passed the driving test.