15. Not until I lay in bed ________ the quiz tomorrow.
(A) did I think of
(B) I thought of
(C) did I not think of
(D) I didn’t think of
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統計: A(414), B(18), C(35), D(13), E(0) #2363054
統計: A(414), B(18), C(35), D(13), E(0) #2363054