绵羊初次配种的年龄一般在（）岁左右。
A、1.5
B、2-3
C、4-5
D、3
参考答案：A
7. --- We are both old friends, so I ____ you such a large sum of money.
--- Thanks a lot. I’ll do the same in the next trade.
A．give
B．advance
C．send
D．Pass
