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(10), B(2), C(9), D(17), E(0) #3895750
統計: A(10), B(2), C(9), D(17), E(0) #3895750
詳解 (共 6 筆)
#7386288
學主動掃描,現在分詞
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