根据现代生物进化理论，物种形成的基本环节不包括（）
A.突变和基因重组
B.自然选择
C.生存斗争
D.地理隔离和生殖隔离
参考答案：C
— Tom, you go to the station to pick up your father and I will cook the dinner.
— ___________ I will go at once. [ ]
A. Why me?
B. Ok, that's settled.
C. What for?
D. Forget it!
The baby is crying. Can you make him ______ ? [ ]
A. to stop to cry
B. to stop crying
C. stop to cry
D. stop crying
