问题补充:
单选题Youshouldtake_______ontime,_______eachtime,andtwotimesaday.A.the medicines; three pillsB.the medicine; three pillsC.the medicine; three pillD.the medicines; three pill
答案:
B解析本题主要考查名词的数,medicine是不可数名词排除A、D,pill是可数名词,排除C,故选B.意思:你应该按时吃药,一次三片,一天二次。