选择正确的答案补全对话。
I ▁▁▁ an interesting bird in a book yesterday.
A. see B. saw C. sees
He could ▁▁▁his friends in Australia.
A. email B. emailed C. emails
---What▁▁▁ you do at home?
---I can sweep the floor.
A. do B. did C. can
I enjoy ▁▁▁ the moon.
A. looking B. looking at C. look at
There was an even ▁▁▁box in that.
A. small B. big C. smaller