(2012·上海高考)The new law states that people ________ drive after drinking alcohol.

We will remember what happened _______the afternoon of may 12,2008.

Teachers should ___them to continue studying when some students want to give it up. 

—Why did you leave without a word of warning to John?—But what _____ otherwise? He never listens to me.

 One of our rules is that every student ________ wear school uniform while at school.(2012·辽宁)