改错题4b9v6f,\,O:M;b:y2p*`:W/j,B4q5f8r
I went sking last Sunday. ,~5j:i*_3e-k-^9l7c1f5E(b—5h8J7W*m9]3i2Q1S+W4b9v6f,\,O:M;b:y2p*`:W/j,B4q5f8r