【已刪除】43 The construction company must pay to have archeologists _______the historical sites.
(A) study
(B)studied
(C)studying
(D)to study
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統計: A(105), B(44), C(53), D(20), E(0) #1191568
統計: A(105), B(44), C(53), D(20), E(0) #1191568