(2013·天津新华中学二次月考)________ several times，he still couldn't understand how to operate the machine.
#89556
A
Telling
B
Having told
C
To be told
D
Having been told
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The policeman kept his eyes________on the screen of the computer to identify the criminal's footprints.
#90093
A
fixing
B
fixed
C
to fix
D
being fixed
The housing problems we are looking forward to seeing _____ have attracted the government’s attention.
#96196
A
solving
B
solve
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solved
D
to solve
_______ from view day by day, the singer isi turning to his memories for comfort.
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A
Having been disappeared
B
Being disappeared
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Disappeared
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Studies show that MP3 people have made much use of _____ music may be causing hearing loss.
#97396
A
enjoy
B
to enjoy
C
enjoying
D
enjoyed