尖状器类、雕刻器类、球形器类和()。
A.石斧
B.石锛
C.石铲
D.石镞
参考答案:D
With a lot of homework _________, I had to stay at home all day.
A.done
B.doing
C.to do
D.being done
你累坏了,快歇一会儿吧。
A.停止
B.休息
C.坐下
D.睡觉