Is this the factory ______ you visited the other day

A:that B:where C:in which D:the one

Great changes (have) (taken place) (since) I (had visited) the city.（　）

A:have B:taken place C:since D:had visited

有以下程序：
#include 〈iostream〉
#include 〈string〉
using namespace std;
class visited

private:
int number;
char *name;
public:
static int glob;
void set mes(char *

A:
;
void visited::set mes(char *a)

name=new char[strlen(A) +1];
strcpy(name,A) ;
number=++glob;

int visited::glob-O;
int main()

visited person[10];
int i;
char str[8];
for(i=0;i<5;i++)

cin>>str;
person[i] .set mes(str);

cout<  

有以下程序：
#include 〈iostream〉
#include 〈string〉
using namespace std;
class visited

private:
int number;
char *name;
public:
static int glob;
void set mes(char *

A:
;
void visited::set mes(char *a)

name=new char[strlen(A) +1];
strcpy(name,A) ;
number=++glob;

int visited::glob-O;
int main()

visited person[10];
int i;
char str[8];
for(i=0;i<5;i++)

cin>>str;
person[i] .set mes(str);

cout<  

Is this the factory ______ you visited the other day

A:that B:where C:in which D:the one