We tried ________ the window, but it was still hot in the room.
#88802
A
to open
B
opening
C
open
D
opened
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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