阿摩線上測驗
7. As the fog began to _____ the valley, the houses slowly disappeared from view.
(A) backslide
(B) envelope
(C) splutter
(D) quell
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統計： A(2), B(17), C(3), D(6), E(0) #3473929
統計： A(2), B(17), C(3), D(6), E(0) #3473929
