选择正确的单词填空。5j0c,n/L(I+y)n)f7{)V-G0g'i
A: How2M0K)d3C;W5J6K+Q.D (many times / often) do you brush your teeth? B: Three times a day.5j0c,n/L(I+y)n)f7{)V-G0g'i