For our safety,we must _____ the traffic rules on the way to school.
follow
change
make
break
本题考査动词的词义辨析。
四个选项的含义分别是:follow 跟随,遵守;change 改变;make 制造;break 破碎,违犯。句意:为了我们的安全,在上学的路上我们必须遵守交通规则。故答案为选项A。
The old man died _____ a cold morning.
in
/
on
at
morning 前面有形容词修饰时表示具体某一天,应用介词 on,故选选项C。