摘要： Once a reporter receives his assignment from the chief-editor, he has to on his work and tries his best to work on it until the chief-editor it. A. fix his attention; approves B. focus; proves of C. concentrate; approves of D. get down; approves
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Once a reporter receives his assignment from the chief-editor, he has to ______ on his work and tries his best to work on it until the chief-editor ______ it.
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A. fix his attention; approves
B. focus; proves of
C. concentrate; approves of
D. get down; approves
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B. focus; proves of
C. concentrate; approves of
D. get down; approves