______ hard all day, I fell fast asleep. 
#90100
A
Working
B
Having worked
C
Worked
D
To work
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I like getting up very early in summer.The morning air is so good _____.
#91846
A
to be breathing
B
to breathe
C
breathing
D
being breathed
Do you know the difficulty he had _______the work?
#97283
A
on finishing
B
to finish
C
finishing
D
finished