18.-I wonder if you could go to the movie with me.
-Oh,just leave me alone.I _______ a composition all the morning and haven't finished yet.( 。
A.writeB.was writing
C.have writtenD.have been writing

分析 --我想你能否和我一起去看電影.
--哦,不要煩我.我整個早晨都在寫作文,還沒有寫好.

解答 答案是D.本題考查現(xiàn)在完成進行時.現(xiàn)在完成進行時表示動作一直在進行,沒有間斷,暗示動作還在進行中;而完成時表明動作已經(jīng)結束;根據(jù)語境可知,說話人還在寫作文,故選D.

點評 完成進行時的解題首先要理解其時態(tài)的基本用法--動作一直在進行,沒有間斷,同時關注其"在進行中"的特征;然后在語境中尋找動作的時間依據(jù)進行判斷.

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