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。

问答题
单项选择题