The period during when people learned to smelt iron is called the Iron Age. when

游客2025-02-02 102

问题 The period during when people learned to smelt iron is called the Iron Age.

选项

答案 when改成which

解析

转载请注明原文地址:https://tihaiku.com/zcyy/3939198.html

相关试题推荐

随机试题

最新回复(0)

Peoplehadbeenconsciousoftheproblembefore,butthenewbookmadethemawar