阿摩線上測驗
27. Only students _____ their digital IDs at the entrance may access the makerspace.
(A) scan
(B) to scan
(C) scanned
(D) scanning
答案：登入後查看
統計： A(3), B(1), C(3), D(6), E(0) #3895750
統計： A(3), B(1), C(3), D(6), E(0) #3895750
