His three years of hard work_____ — he did a good job in the 2012 NMET and was admitted into a key university.
ThereareseveralresearchcentersinChina________acertaindiseasecalledBirdFluis beingstudied.
I ___ the French written papers but failed in the English oral examination.
______ alone in a dark room, the little girl was so frightened as to cry loudly.
— Thanks for your help. — Don’t mention it. I _______ offered some advice.
Ladies and gentlemen, I have the great privilege____ introducing our speaker for tonight.