The _______ boy made the police and his family _______. 
#92633
A
gone; puzzled
B
missing; puzzled
C
missing; puzzling
D
lost; puzzling
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The recorder doesn’t work. Something seems ______ wrong with it.
#89787
A
to go
B
to have gone
C
going
D
having gone
Madame Curie is believed _______ radium.
#96123
A
discovering
B
having discovered
C
to have discovered
D
to discover
He sat back on the chair, took a book and began to read, ___.
#98636
A
being looked at ease
B
looked rather at ease
C
to look rather at ease
D
looking rather at ease