15．---You look tired，what's wrong？
---Well，I ____ the wall the whole day and it hasn't been finished yet．（　�。�
A．have paintedB．have been painting
C．have been paintedD．am painting

分析 -你看起來很累．怎么啦？
-哎，我刷了一整天墻，還沒刷完．

解答 答案：B．根據(jù)the whole day表明從過去一直持續(xù)到現(xiàn)在都在做的事情并且"hasn't been finished"還要延續(xù)到未來，故用現(xiàn)在完成進(jìn)行時(shí)，即have been painting，故選B．

點(diǎn)評(píng) 本題考查現(xiàn)在完成進(jìn)行時(shí)，需要學(xué)生對(duì)動(dòng)詞持續(xù)的時(shí)間進(jìn)行分析，得出合適的時(shí)態(tài)．

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