Jane is supposed to stop working. She has a serious headache because she ______  all the morning .

   A. wrote    B. is writing    C. had written    D. has been writing

D


解析:

根據(jù)時間狀語可知，整個早上Jane都一直寫作，用現(xiàn)在完成進(jìn)行時，表示從過去某時開始，一直延續(xù)到說話時刻，可能剛剛結(jié)束的動作。

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