11 --You look tired.-----I ___ the living room all daya have been painting b.have painted

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11--Youlooktired.-----I___thelivingroomalldayahavebeenpaintingb.havepainted11--Youlooktired.-----I__

11 --You look tired.-----I ___ the living room all daya have been painting b.have painted
11 --You look tired.-----I ___ the living room all day
a have been painting b.have painted

11 --You look tired.-----I ___ the living room all daya have been painting b.have painted
a have been painting
-----你看上去很累.
-----我一整天都在宿舍画画.
have been painting过去一直持续到现在的动作

was cleaning

(was)cleaning
I (was)cleaning the living room all day
口语中be动词可以省略