阿摩線上測驗
33 The Geopark employs various methods to conserve water, including rainwater harvesting and a closed-loop filtration system, while also _____ groundwater _____ recharge wells.
(A) combining …to
(B) using…on
(C) seeking …with
(D) replacing …with
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統計： A(8), B(12), C(2), D(15), E(0) #3412398
統計： A(8), B(12), C(2), D(15), E(0) #3412398
