Hehasbeenstudyinginthelibraryeverynight_____thelastthreemonths.
(A)since
(B)for
(C)until
(D)before

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統計： A(91), B(141), C(7), D(5), E(0) #70686

詳解 (共 1 筆)

#632412
He has been studying in the library every night_____the last three months. 
(A)since (B)for (C)until (D)before
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