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______ frightened us ______ a tiger turned up suddenly in front of us.  

A. What; was that; e1 _' _0 F ]( T B.What; was3 e4 O2 T% J4 e O+ `2 D( B0 e' `( ? C.It; that was( W8 D) `% j J$ T0 H) F9 \ D.It was; that# @1 M. D* E, E1 \$ P* b

答案A

解析