A hammer_______ a means of driving a nail.
A. was
B. is
C. are
D. were
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He has given a series of ________ of his loyalty and sincerity.
A. proof
B. prooves
C. proofs
D. proofes
He was eager to make some extra money , since during these years he could hardlylive on his______.
A. wages
B. little wage
C. wage
D. few wage
The police ______ the house attempting to find some traces.
A. is searching
B. search
C. searching
D. searches
After ten years , all the youngsters became _______.
A. growns-ups
B. growns-up
C. grown-up
D. grown-ups