A:appeared
B:had appeared
C:have appeared
D:were appearing
《越绝书》记载:“禹穴之时,以铜为兵。”我国古代出现青铜器是在什么时候( )
次数
∠i
∠r
1
70°
2
45°
3
30°
- Could you tell me _______?
- My cousin. He works as a policeman in the police station.
假期,小明来到一个被称为“骑在羊背上的国家”参加夏令营活动。结合所学知识,回答问题。
— Mr. Green gets up very early every morning.
— Yes, so he always goes to work ______ time.