用所给词的适当形式填空:[7`4~+s8J:}3[/j;x
Their father '_3c*@ (swim) very fast. Look, he *U'B)m:H*E2^'A.G9q (swim) in the sports:[7`4~+s8J:}3[/j;x
hall now.:[7`4~+s8J:}3[/j;x