He won the scholarship. He ______ hard these terms.A．should have workedB．must have workedC

I am _______ to believe that he won‘t come back to

Not only _______ finish the task, but also he won the prize.A.does his brotherB.his bro

He has won wide _____ in the field of occupational medicine.

—You wont follow his example, will you ？ —_____, I dont think he is right.A．No, I won"tB．Y

Mark did not get the scholarship he______and is now working as a delivery boy for a flower

Not only ______ the gift, he ______ the sender.A、did he refuse; criticizedB、did he refus