in case of emergency ( )you have to stop on the freeway,you should do the following:a

问题描述:

in case of emergency ( )you have to stop on the freeway,you should do the following:a
a.which b.where c.that d.on which

cwould you mind telling me why you think the best answer is c?固定搭配吧,而且后面不缺成分。用that指代。