一.括号部分提问.二.还有几道数学题不知道怎么列比例式方程
1.I （take the bus 提问）to school.
2.he bought (a book 提问) last week.
3.she (watched tv 提问) yesterday.
1.1/2X：3/8=1.2
2.3/8：X=1/3:1/10
3.10.5/X=0.5*0.7/4