.Mary couldn’t make herself _______ attention to because her classmates made so much noise.
#97911
A
paid
B
to pay
C
pay
D
paying
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The specialist      at the meeting will give us a lecture next week . 
#89840
A
referred
B
referred to
C
referring
D
referring to
Victor apologized for ________ to inform me of the change in the plan.
#95339
A
his being not able
B
him not to be able
C
his not being able
D
him to be not able