动词专项练习一、选 择填空( ) 1. Where _ Uncle Sun yesterday?A. was B. were C. did D. does( ) 2. They _ going to see Mr. Sun tomorrow.A. is B. are C. am D. be( ) 3. Some are _ in the river and some are _ games.A. swiming, playing B. swimming, plaiing C. swimming, playing D. swimming, plaing( ) 4. Where is Dick? He _ to the reading-room.A. has been B. went C. has gone D. goes( ) 5. Mark Twain, an American writer, _ everybody here.A. knows B. is known a
