原始社会后期，人类进行了三次社会大分工，是
A.畜牧业和农业
B.工业和农业
C.手工业和农业
D.体力劳动和脑力劳动
参考答案：A, C, D
________in the queue for half an hour, the old man suddenly realized he had left the cheque in the car.
[ ]
A. Waiting
B. To wait
C. Having waited
D. To have waited
亚洲北、东、南三面分别濒临______洋、太平洋和印度洋．
