24. The ageing population is expected to increase rapidly, not gradually, with people over 70 ______ to be 35% by 2050.
(A) estimate
(B) estimating
(C) has been estimated
(D) estimated
(E) to be estimated
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統計: A(1), B(4), C(2), D(54), E(0) #2055391
統計: A(1), B(4), C(2), D(54), E(0) #2055391