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( ) 1. I’m going on a field trip but I haven’t decided__________. (2020 年河南 ) A. what to do B. to do what C. where to go D. to go where ( ) 2. —This physics problem is too difficult. Can you show me ________, Wang Lin? —Sure. (2020 年陜西 ) A. what to work it out B. what to work out it C. how to work it out D. how to work out it ( )3. Excuse me. Would