______to looking after her sick father for 2 years ,she badly needed a holiday.
#98500
A
Devoting
B
Having devoting
C
Having been devoted
D
Devoting herself
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It is no use ________ him to give up smoking. He won’t listen!
#94177
A
to persuade
B
trying to persuade
C
persuading
D
try to persuade
________ his lessons , he failed in the exam. 
#90060
A
Not reviewing
B
Having not reviewed
C
Not reviewed
D
Not having reviewed