阿摩線上測驗
21 It is important that every employee ___ the updated safety guidelines.
(A)follows
(B) fellows
(C) to follow
(D) to fellow
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統計： A(106), B(6), C(30), D(1), E(0) #3744895
統計： A(106), B(6), C(30), D(1), E(0) #3744895
