--Hi, Tracy, you look tired.

   --I am tired. I________ the living-room all day.

A. painted                        B. have been painting    

C. had painted                    D. have painted

--Hi, Tracy, you look tired.   --I am tired. I__________ the living-room all day.

A.painted                        B. have been painting    

C. had painted                    D. have painted

 Hi, Traly, you look tired.

I’m tired. I        the living room all day.

 —What’s up? You look down.

—I have piles of papers _______ , but I type so slowly.

A. to be typed                                                  B. typed

C. to type                                                               D. being typed

—Hi, Susan, you look tired.
—I       for months for the coming celebration of our school’s 90th anniversary.