问题
选择题
-----I wonder if you could go with me to the supermarket.
------- Don’t disturb me. I _____________my experiment report all the morning and haven’t finished yet.
A.write
B.was writing
C.have written
D.have been writting
答案
答案:D
题目分析:表示动作从过去某一时间开始一直持续到现在,并且有可能持续下去,故用现在完成进行时。
点评:这道题目难度适中,在平时的学习中,认真掌握好各个时态的用法,不难做出解答。