问题
— Hi, Tracy, you look tired. — I am tired. I ____ the living room all day. [ ]
A: painted
B: had painted
C: have been painting
D: have painted
B: had painted
C: have been painting
D: have painted
正确答案是：
同类题型
1That is the man ____ ___ saved ten children in the earthquake.
Why does the lake smell terrible?— Because large quantities of water _________
There is no _______ evidence _______ the plane crashed into the South China Sea at present.
It was so quiet in the classroom that a needle _________ to drop onto the floor.[ ]