1.He is__his father.
A as taller B the taller than C as taller than D taller than
答案：B 这题我原来选D，为什么要加the 呢？？
2.A cow is__as a horse.
A as an animal strong B as a strong animal
C as strong an animal D strong as an animal
答案：C
3.Our school is__middle school in our city.
A the second large B the second largest
C.the first large D the first largest
答案：B
4.The old man lives___,but he doesn't feel__
A lonely,alone B alone,lonely C lone,lonely D lonely,lone
答案：C
请给解释一下原因！ 谢谢了！！！！