A. 对 B. 错
A. on spot B. on the spot C. on a spot D. on the spots
A. from the top to bottom B. from top to the bottom C. from top to bottom D. from the top to the bottom
A. on a hand B. on hand C. on the hand D. on hands
At the front of B. At a front of C. At front of D. At the fronts of
A. in a case of B. in the case of C. in case of D. in cases of
A. in a possession of B. in the possession of C. in possessions of D. in possession of
A. at a short notice B. at short notice C. at the short notice D. at short notices
A. at a loss B. at the loss C. at losses D. at loss
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