A warm-up is important before a run so as not to ______any muscles.
A. constrain
B. consist
C. strain
D. stress
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The document was signed in the ______ of two witnesses.
A. present
B. presence
C. president
D. press
Among his many good qualities, honestyis the most ______one.
A. astonishing
B. enormous
C. intelligent
D. impressive
He always makes a terrible ______when he's cooking.
A. mess
B. ingredient
C. confusion
D. puzzle
The only ______in his character seems to be a short temper.
A. flawless
B. frown
C. floe
D. flaw
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