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( ) 1. Look! Some boys _________in the river.
¡¡¡¡A. swim ¡¡¡¡B. swimming ¡¡¡¡C. is swimming ¡¡¡¡D. are swimming
( ) 2. It’s twelve o’clock now. The Greens _______lunch at home.
¡¡¡¡A. have¡¡¡¡ B. has ¡¡¡¡C. is having ¡¡¡¡D. are having