阿摩線上測驗
12. The president signed an executive order last month ____ an existing law that protects federal monuments.
(A) reinforced
(B) to reinforce
(C) which at reinforced
(D) that reinforcing
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統計： A(62), B(247), C(20), D(49), E(0) #2431791
統計： A(62), B(247), C(20), D(49), E(0) #2431791
