阿摩線上測驗
27. Last week, there were 200 students ______ in the library to prepare for the mid-term exam.
(A) study
(B) who study
(C) studied
(D) studying
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統計： A(10), B(12), C(65), D(156), E(0) #3227347
統計： A(10), B(12), C(65), D(156), E(0) #3227347
