A warning signal suddenly appeared on the screen of my computer, ______ the computer was being attacked by a certain virus.
#90701
A
indicated
B
indicating
C
to indicate
D
having indicated
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_______ to her own work, she spent little time with her children.
#96458
A
Devoting
B
To be devoted
C
Devoted
D
Having devoted
As he was about to go out to search for Mary, she happened ____. 
#94046
A
to coming in
B
to come in
C
came in
D
to have come in