A

A. 6,10 x 98 + 6,10 x 2 = 6,10 x ( 98 + 2) = 6,10 x 100 = 610

B. 19,7 x 4 x 2,5 = 19,7 x 10 = 197

D. 63 tỉnh

Mai has played the piano since she was ten years old

"Did you go to the countryside to visit your grandparents last weekend ?" My uncle asked me.

=> My uncle asked me if I had gone to the countryside to visit my grandparents the weekend before.

takes me to / My dad / uncle every week. / The countryside / to visit my