The numbers that researchers get from the experiments can be _______, just like number puzzles.
#73950
A
disappointing
B
inspiring
C
worrying
D
confusing
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That’s where I _______ live when I was a child.
#71342
A
used to
B
was used to
C
was using to
D
am used to
 We will wait for further information, you should keep us_________.
#67849
A
heard
B
informed
C
realized
D
recognized