．—Why,Jack,you look so tired!

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/10/01 21:20:09

．—Why,Jack,you look so tired!
---Well,I _____the house and I must finish the work tomorrow．
A．was painting B．will be painting
C．have painted D．have been painting

have been painting 是现在完成进行时,have表示“已经发生的”,单纯看be doing表示一直在做,所以整句话可以解释为“我（已经、之前）一直在粉刷我的房子而且我必须在明天完成它.”（因为一直在做这件事,而且明天就要完成时间紧迫,所以jack看起来会那么累）
如果是A,一般后面会加个时间,比如yestaday,表示过去时；B的说法不对,应该改为will paint
c have painted 表示“已经完成”,与后面“必须在明天之前完成”矛盾.
所以选D.
不知道这样解释你会不会明白.

.—why,Jack,you look so tired! ．—Why,Jack,you look so tired! -why do you always look so tired? —Why are you looking so tired? -Why do you look so tired?-There are so many problems___ why do you always look so tired?这是定语从句吗? Why do you look so tired?I stayed(.)the whole night Why do you look so tired?-----We have just returned from ___ You look so tired!Why not stop （）（have）a rest? you look tired .why( ) a rest —You look tired. why are you so tired todoy?