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NCE 47

We keep trying all four methods, but the     小题1:    we produce worldwide       小题2:     .

NCE 48

We expected the path    小题3:   , but we found that it    小题4:   through the trees.

NCE 49

…, but Bessie seemed unable       小题5:  . She      小题6:     and kept mumbling about the guests.