如何基于其他2制作一个字符串？

Question

我试图根据其他两个来制作一个混合字符串，例如，string1 =＆＃34; Good Morning＆＃34;和string2 =＆＃34;大家好＆＃34;，所以我的脚本会这样输出：＆＃34; Good Hello Morning的家伙＆＃34;。

我差不多完成了..我尝试了什么：

int main() {
char frase2[99];
 int i =0;
 char frase3[99];

 printf("Type a sentence: ");
  gets(frase1);
 printf("Type a sentence: ");
 gets(frase2);

  char * pch1;
 char * pch2;

 pch1 = strtok (frase1," ");
 pch2 = strtok (frase2," ");

 while (pch1) {
strcat(frase3,pch1); 
pch1 = strtok (NULL, " ");

strcat(frase3,pch2); 
pch2 = strtok (NULL, " ");
  }
   puts(frase3);
 }

输出：示例：frase1 =＆＃34;早上好＆＃34 ;; frase2 =＆＃34;嘿伙计们＆＃34 ;;输出：错误