102. If _____ properly, glass fences will require minimal maintenance, consisting of
regular washing with soap and water.
(A)install
(B) installed
(C) installing
(D)installation
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統計: A(1022), B(1911), C(662), D(184), E(0) #3075533
統計: A(1022), B(1911), C(662), D(184), E(0) #3075533
詳解 (共 5 筆)
#6532251
這句是省略了「If glass fences are installed properly」的被動語態條件句,改用過去分詞形式,語意完整且精簡。
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