14. Half of the workforce in the top tech companies _____ not over the age of 25.
(A) are
(B) were
(C) am
(D) is

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統計： A(21), B(1), C(0), D(10), E(0) #2077458

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#4646963
主詞Half of the workforce是單數。
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Half of the workforc...
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