早期城市形成的主要动因是( )。
A.人类劳动的大分工
B.农业和牧业为标志的第一次人类大分工
C.商业和手工业从农牧业中的分离
D.商业和手工业的聚集
参考答案:A
用单词的适当形式填空。
1. Bob is (Jenny) brother.
2. We often go to the park on (Sunday).
3. (a) orange player catches the ball.
4. Bob's team (play) basketball this evening.
5. The two teams played (hard).
You should ____________ your hands if you have any problems.
A.give up
B.fix up
C.cheer up
D.put up