His failure was ____ carelessness.
A. due to
B. in
C. of
D. to
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To our satisfaction, he got the first prize in the English speaking ____.
A. competition
B. test
C. talk
D. compete
He came in and took a seat ____ to me.
A. opposite
B. before
C. in front
D. opposites
Although they suspected him, the police had not enough evidence to prove that he was ____.
A. guilty
B. guilt
C. wrong
D. right
I ____ an hour or so a day updating my micro blog.
A. cost
B. spend
C. take
D. takes