-Hi,Tom,You look tired.-Yes,I__the room all the afternoon.

问题描述:

-Hi,Tom,You look tired.-Yes,I__the room all the afternoon.
A.painted
B.had painted
C.have painted
D.have been painting
为什么选择D

选D是因为它是一个过去完成进行时
all the afternoon 说明他整个下午都持续在paint