The confidence of the Chinese film makers _______by Avatar, the release of______ has not only set a good example for the Chinese film industry but also embarrassed our directors, who lack professional ethics. 

Was it in 1802 when he discovered his hearing problem _____ Beethoven realized that his future ______ in composing music?

He is_______to have come back from the abroad.

—Did you have any trouble with the customs officer?—________ to speak of.

.—May I remind you that a Mr. Zhang is waiting downstairs, sir? —Oh, dear. I ________ about it.