came to 和 went to 有什么区别?

For a moment nothing happened,and then ___came to___all shouting together.为什么
For a moment nothing happened,and then ___came to___all shouting together.为什么错了,答案是came voices 什么语法结构?

In those hard days, we could not leave behind________came to us for help. A．who　 B．whomever C．no matter who　 D．whoever

英语作业
An old man went to a hospital. When the ___21__ came to see ____22__, he said,“Mr. Smith, you are going to have two injections（注射）,and the you’ll feel much __23___. A nurse will come and give you the first one this evening, and then you’ll get __24___ tomorrow morning.”
In the evening a young ___25__ came to Mr. Smith’s bed and said to him,“I’m going to give you the first injection now. _26___ do you want it?”
The old man was _27___. He looked at the nurse for seconds and then he said, “__28___ has ever let me choose ___29__ before. Are you going to really let me choose now?”“Yes, Mr. Smith,” the nurse answered ___30__ a smile. “I want it in your left arm, please.”
（ ）21. A. worker B. doctor C. teacher D. daughter
（ ）22. A. a doctor B. a nurse C. me D. him
（ ）23. A. fine B. good C. well D. better
（ ）24. A. the other B. another C. others D. other
（ ）25. A. man B. doctor C. nurse D. woman
（ ）26. A. Where B. What C. When D. Why
（ ）27. A. happy B. afraid C. surprised D. angry
（ ）28. A. Everybody B. Anybody C. Nobody D. Nothing
（ ）29. A. it B. this C. one D. that
（ ）30. A. with B. in C. has D. have